Surgical exploration of the ankle and foot demonstrates a muscle arising from the medial and lateral processes of the tuberosity of the calcaneus and inseing into the lateral side of the base of the proximal phalanx of the 5th toe. How does this muscle act on the 5th toe?
A
Abduction
B
Adduction
C
Extension
D
Flexion of the middle phalanx on the proximal phalanx