Which revision corrects the error in this sentence? players must maintain good grades, meet all physical-fitness requirements, and attend practices regularly to play on the varsity team. players must regularly maintain good grades, meet all physical-fitness requirements, and attend practices to play on the varsity team. regularly, players must maintain good grades, meet all physical-fitness requirements, and attend practices to play on the varsity team. players must maintain good grades, meet all physical-fitness requirements, and attend practices to play regularly on the varsity team.

The correct answer is:

Players must maintain good grades, meet all physical-fitness requirements, and attend practices regularly to play on the varsit team

the idea is to show what the players must do as a regular routine so they can play on the team.

"Players must maintain good grades, meet all physical-fitness requirements, and attend practices to play regularly on the varsity team" is the option that corrects the error in the sentence. The position of the adverb regularly defines which verb is modified. In the original sentence, the idea is that players must attend practices regularly. In the correct revision, the idea is that players must fulfill all three requirements so as to play regularly on the team.

c. barbarians with unexpected intelligence  

i believe the answer is inference