A muscle that runs down the arm, and inserts on the olecranon process of the ulna, would cause

A) extension of the elbow.
B) abduction of the arm.
C) extension of the fingers.
D) flexion of the elbow.
E) flexion of the fingers.

Olecranon Process

The prominent, pointed bone at the proximal end of the ulna, around which the elbow joint is formed.

Extension

A movement that increases the angle between two body parts, such as straightening a flexed knee.

Flexion

A movement decreasing the angle between two body parts, such as bending the arm at the elbow or the knee.