问题
Kangkang won the first place in the _______ in the school sports meet last week.
A:boy’s 100-meter race
B:boys’ 100-meter race
C:boy’s 100-meters race
D:boys’ 100-meters race;
B:boys’ 100-meter race
C:boy’s 100-meters race
D:boys’ 100-meters race;
正确答案是：
