s and came in first. Aaron finished the race in 58 s and came in second. Which of
9 Blair and Aaron competed in a 400-m running race. Blair finished the race in 55
the following must have been greater for Blair than for Aaron?
A maximum speed during the race
B average speed for the entire race
C speed for the last 100 m of the race
D initial speed for the first 100 m of the race
