Isaiah and Jayla have both begun running together. Isaiah runs much faster than Jayla and keeps getting noticeably better every week. Jayla must work much harder, and her progress is slower. Isaiah begins telling Jayla what he thinks she’s doing wrong and often remarks that if she’s not going to commit to running, she should just quit. What BEST describes Isaiah’s feedback to Jayla?
A.
supportive
B.
fair
C.
negative
D.
useful