All of These Muscles,except One,is Innervated by the Radial Nerve.select

All of the anterior muscles of the forearm,except one,have their proximal attachment on the medial epicondyle of the humerus via a common flexor tendon.Select the exception. A)Flexor carpi radialis B)Palmaris longus C)Flexor carpi ulnaris D)Flexor pollicis longus E)Flexor digitorum superficialis

What is a retinaculum? A)A flat band of muscle B)A wide aponeurosis C)A sliding tendon D)An area where several muscles converge E)A thickened fibrous band of fascia