Just like this step, we essentially want to extract electrons. In the process, we want to transform this hydroxyl group into a carbonyl group. And once we form that carbonyl group, we basically form the ketone. And now we can undergo a cleavage process in which Coenzyme A is basically used to cleave this bond and we form these two product molecules. Now, one of these two product molecules is the two carbon component that we basically removed, and this is this activated acetyl unit. So acetyl simply means we have one, two carbons, and activated means we still have this Coenzyme A molecule, which is given by R prime.