单选题 Modern scientific researches have reported to us that______.

A、 fat people eat less food and are less active
B、 fat people eat more food than slim people and are more active
C、 fat people eat more food than slim people but are less active
D、 thin people run less, but have greater increase in food intake

【正确答案】 A

【答案解析】概括题。此题概括了后两段的内容。根据第二段最后一句“...on balance，fat people eat less than slimmer people．”和第三段第一句"Studies show that slim people are more active than fat people．”可以得出正确答案。