以下程序的运行结果是( )。
#include ＜stdio．h＞
main()
st，uct date
int year，month，day；today；
printf("%d\n"，sizeof(struct date))；

A) 6
B) 8
C) 10
D) 12

-Why does the Lake smell terrible? 

-Because large quantities of water       .  

A．have polluted

B．is being polluted

C．has been polluted

D．have been polluted