THIS IS FROM AN ARTICLE FROM NEWSELA CALLED (Like Andrew Luck, kids quit sports when the joy goes away)

PLZ GIVE ME THE RIGHT ANSWER BE HONEST

Which sentence from the article BEST introduces why Andrew Luck retired?

A
He stunned the sports world on August 24 by announcing his retirement.
B
Luck is a four-time Pro Bowl player who may have had his best season in 2018, when he threw for 4,593 yards and 39 touchdowns.
C
Luck said this cycle of injury, pain and trying to heal from the injuries had "taken my joy of this game away."
D
Luck's situation is different from that of kids who play sports.