The core of the pyruvate dehydrogenase complex is made up of eight catalyticthat make up thecomponent. a. monomers; E1b. dimers; E2c. dimers; E3d. trimers; E2

(D.)

The core of the pyruvate dehydrogenase complex is made up of eight catalytic trimers that make up the E2 component.

Explanation:

Eight trimers assemble as a hollow truncated cube, which forms the core of the multi-enzyme complex, known as the E2 complex in human pyruvate dehydrogenase complex.

i think it's letter a.