21. Based on the passage, how did Berry’s personality affect his career?
A. His ambitious, competitive personality was offputting to other musicians, who were reluctant to play with him.
B. His genial personality endeared him to other musicians, but his career suffered when he spent more time socializing than practicing.
C. His modest and easygoing personality kept him out of the spotlight and, consequently, he received less attention as a performer.
D. His shy, introspective personality was misunderstood as snobbish arrogance, so he was offered few recording-session jobs