When asked why he went there, he said he was sent there           for a space flight.   [ ]

A. training    

B. being trained    

C. to have trained  

D. to be trained

六（1）班一次考试的平均成绩是87.3分，经过复查发现将李晓莉的87分误看作了78分计算．经过重新计算，该班的平均成绩是87.48分，这个班有多少人？