题目内容：
根据下列材料，请回答题：Expertsinthefoodindustryarethinkingalotabouttrashthesedays.Foodwastehasbeenaseriousproblemforrestaurantsandgrocerystores—withmillionsoftonslostalongthewayascropsarehauledhundredsofmiles,storedforweeksinrefrigeratorsandpreparedonbusyrestaurantassemblylines. Restaurants,colleges,hospitalsandotherinstitutionsarecompensatingfortherisingcostsofwasteinnovelways."Wehaveallcometoworkwiththisbigelephantinthemiddleofthekitchen,andheelephantisthis'It'sokaytowaste'beliefsystem,"saidAndrewShackman,presidentofLeanPath.Acompanythathelpsrestaurantscutbackfoodwaste. FreshmanstudentsatVirginiaTechweresurprisedthisyearwhentheyenteredtwoofthecampus’sbiggestdininghallstofindtherewerenocafeteriatrays.“Youhavetogobackandgetyoursilverwareandyourdrink,butit'snotthatdifferent,”saidCaitlinMewborn,afreshman.“It'snotabigdeal.Youtakelessfood,andyoudon'teatmorethanyoushould.”Gettingridoftrayshascutfoodwasteby38percentatthecafeterias,saidDennyCochrane,managerofVirginiaTech'ssustainabilityprogram. Beforetheprogrambegan,studentsoftengrabbedwhateverlookedgoodatthebuffet(自助餐),onlytofoodatthetablethattheireyeswerebiggerthantheirstomachs,hesaid.
Accordingtothefirstparagraph, A．lotsoffoodarewastedascropsarehauledfromfaraway
B．foodwasteisthemostseriousproblemsforrestaurantsandstores
C．expertsputforwardmanyproposalstosolvetheissueoftrash
D．.busyrestaurantassemblylinesproducemillionsoftonsoftrash
参考答案：
答案解析：