Which Process Is NOT a Step in the Catabolism of an Even-Chain

Which process is NOT a step in the catabolism of an even-chain fatty acid?

A) formation of a thioester linkage involving a fatty acyl molecule
B) catlyzation of a transesterification reaction by CAT II
C) isomerization of a cis- $\Delta$ ³-double bond to a trans- $\Delta$ ²-double bond
D) cleavage by thiolase yielding two acetyl-CoA molecules
E) dehydrogenation by acyl-CoA dehydrogenase yielding NADH