Answer:
The correct answer is - flexor digitorum profundis.
Step-by-step explanation:
Flexor digitorum profundus is one of composite muscle that extends down the hand and inserts on the distal phalanges of digits II through V. It innervated by the ulnar nerves and nerve of interosseous.
These muscles help in the movement of the fingers towards the palm of hand known as flexing the fingers.
Thus, the correct answer is - flexor digitorum profundus.