Weekly flex the elbow joint

In a vehicular accident, the Musculocutaneous nerve was completely severed, but still the person was able to weekly flex the elbow joint. All of the following muscles are responsible for this flexion, except (AIIMS 2004)

a) Brachio-radialis
b) Flexor carpi radialis
c) Ulnar head of Pronator teres
d) Flexor carpi ulnaris

Answer- c
See above explanation