[单选题]
When a football in a field gov-n/)wtmat0 th ),fw tal attempt ruol 2s d 9,6b(b5piph0c9g hdseaches its maximum height, how does its spe 2pb9d ls9 ubpgoh50(cs,6idhed 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.
