At the start of a 100-yard dash (race), your body relies on which reserve as its energy source?
a. atp-cp
b. lactic acid
c. creatine phosphate
d. aerobic oxygen

"Creatine phosphate" is the one among the following choices given in the question on which your body relies on at the start of a 100-yard dash. The correct option among all the options that are given in the question is the third option or option "c". I hope that this is the answer that has come to your desired help.