题目内容：
Questions are based on the following passage．Finally, good news on the obesity epidemic (流行) : Though their parents and older siblings are just as overweight as ever, little kids around the country are considerably slimming down．
Obesity in children aged 2-5 has declined 43% in the last decade, according to Centers for Disease Control (CDC) data recently released in the Journal of the American Medical Association． Nearly 14% of young ones were considered obese in 2004 compared to a little over 8% in 2012． While this is undoubtedly a move in the right direction, obesity rates for older children and adults remain stalled (停滞) ．
The reason behind the drop isn't clear, but several moves have been made in the last decade to combat the country's growing weight, and many of the initiatives have focused on our youngest citizens．CDC Director Tom Frieden says he's seen "signs from communities around the country with obesity prevention programs including Anchorage, Alaska, Philadelphia, New York City, and King County, Washington． This confirms that at least for kids, we can turn the trend and begin to reverse the obesity epidemic."
Likely due to a combination of these federal and local health initiatives that aim to improve nutrition and exercise at daycares and preschool programs, young children seem to be getting healthier． Children now get less of their calories from sugary beverages．． And more babies are being breastfed (母乳喂养) , and for longer periods of time--a proven way to keep off excess weight in children．
The CDC classifies obesity as the nation's number one health problem． Over one third of children and adolescents are overweight or obese--a number which rises to more than two-thirds for adults．
While some parents might consider larger little ones as just carrying "baby fat", recent research has proven that excess weight follows young children and negatively affects them throughout their young and adult lives．
One third of kindergarteners who are overweight are obese by the eighth grade, according to study published in the New England Journal of Medicine． And studies show over three quarters of obese children go on to become obese adults, with all the associated health problems．
Obese children are at increased risk for heart disease, diabetes, bone and joint problems, and psychological problems associated with self-esteem． They also face increased health care costs, and premature death．
News of the preschool slim down follows a 2012 report that showed extreme obesity started to decrease in two to four-year-olds who participated in federal nutrition programs, mostly the Supplemental Nutrition Program for Women, Infants, and Children (WlC) , which provided food and education to almost 9 million low-income pregnant and breastfeeding women and children under 5 years of age in Fiscal Year 2011．
What can we infer from the world "Finally" (Line 1, ParA) 1． ? A．Previous news on the obesity epidemic has been disappointing．
B． Researchers have just found a solution to the obesity epidemic
C． New research on the obesity epidemic has come to an end
D．Federal nutrition programs have yielded expected results．
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