The one on the left because it fancy
Answer:
The answer to this question is hydrochloric acid converts pepsinogen to pepsin!
Explanation:
All the other answers just don't make sense!
Answer:
Proximally, the radius terminates with a disk-shaped head that articulates with the capitulum of the humerus and the radial notch of the ulna. Immediately below the head lies the radial tuberosity to which the biceps brachii attaches.
Explanation: