Which variable is most important to the following problem? Dorothy played the first 17 minutes of the game. Evelyn then replaced her for
the rest of the half. Evelyn started the second half and was replaced by
Dorothy with 21 minutes left in the game. If each half is 45 minutes long, how
many minutes did Evelyn play?

A. the amount of time Evelyn played

B. the number of players on a team

C. the length of a half