[单选题]
When a football in a field goal attemym z.o3j oyi(;xjln( )pt reaew hfo:sekr- e*ywx*lr(9 2p*ches its maximum height, how does its speedr*e wrp9wl:2f *o kye e(-h*sx compare to its initial speed?
A. It is zero.
B. It is less than its initial speed.
C. It is equal to its initial speed.
D. It is greater than its initial speed.
