题目内容：
阅读下列短文，回答题。 "Are you crazy?" people around him shouted as Alex mien, a 33-year-old immigrant(移民), rantoward three cars in a chain accident along the highway in Miami, which were burning down． Alexdidn't think twice．
The article"Against the Flames" reported how he put out the fire on a car and pulled a coupleout of another． But when he returned to his own car, steam was coming out from it． It was damagedbeyond repair．
Back in his tiny flat, alone and with little money, Alex didn' t know what to do． He was alreadyworking, going to college and supporting his wife, Aline, and children back in Haiti． He worried about
his wife's health ;doctors thought she had cancer(癌症)． Every cent was important to him． And nowthis．
Within weeks of reading the article, readers sent hundreds of letters offering jobs, money andbest wishes． One delivered a car--used, but in fine condition． Others helped Aline come to Miami,where a medical team found out it was not cancer．
Readers also wrote to U． S． government officials to support the immigration of Alex' s family toMiami． Consul General Roger Daley even invited Alex to discuss the matter． Aline, together with theirchildren ,joined Alex in Miami this past March． Alex says, "I would like to say a beautiful thanks tothe readers． There are good people everywhere in this world． "
Why did people say that Alex was crazy? A．He had an accident．
B．He made a fire on the highway．
C．He burned his car．
D．He ran toward the burning cars．
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