A Possible Product of Isoleucine Catabolism Is:
A) Acetyl-CoA $\alpha$ -Keto Isoleucine

A possible product of isoleucine catabolism is:

A) acetyl-CoA.
B) succinyl-CoA.
C) conversion to $\alpha$ -keto isoleucine ( $\alpha$ -keto- $\beta$ -methylvalerate) .
D) All of the answers are correct.
E) None of the answers is correct.