Multienzyme complex in humans: (A) Fatty acid synthetase, (B) Malonyl CoA Carboxylase, (C) Carbamoyl phosphate synthetase, (D) Adenosine phosphoribosyl transferase
Answer is A. Fatty acid synthetase 

Enzymes used in the fatty acid synthesis are multienzyme complexes:-


Acetyl-CoA carboxylase
Fatty acid synthase