What is the most likely lost due to this injury?

A 43 year-old woman visits her physician for a follow up after abdominal hysterectomy. During surgery, the obturator nerve was served.

What is the most likely lost due to this injury?

A-Abduction of the hip joint
B-Adduction of the hip joint
C-Flexion of the knee joint
D-Extension of the knee joint
E-Dorsiflexion of the ankle joint