This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Action of Lumbricals is 
Select and explain. 
A. Flexion at Metacarpo - Phalangeal joint and flexion at Interphalangeal joint, B. Extension at Metacarpo - Phalangeal joint and extension at Interphalangeal joint, C. Flexion at Metacarpo - Phalangeal joint and extension at Interphalangeal joint, D. Extension at Metacarpo - Phalangeal joint and flexion at  Interphalangeal joint
C: Flexion at Metacarpo - Phalangeal joint and extension at Interphalangeal joint
Answer: C: Flexion at Metacarpo - Phalangeal joint and extension at Interphalangeal joint 
Explanation: Action of Lumbricals is Flexion at Metacarpo - phalangeal joint and extension at Interphalangeal joint.