Where Is Dystrophin,the Protein That Is Defective in Muscular Dystrophy,normally

Multiple Choice

Where is dystrophin,the protein that is defective in muscular dystrophy,normally found?

A) Between the outermost myofilaments and the sarcolemma of a muscle fiber
B) As a transmembrane protein of the sarcolemma
C) In the Z discs of skeletal and cardiac muscle
D) In the dense bodies of smooth muscle
E) Bridging the gap between the sarcolemma and axon terminal