Collar bone is known as–

Correct option is A

Sol. The clavicle, or collar bone, is a long bone that connects the sternum (breastbone) to the scapula (shoulder blade). It helps in shoulder movement and protects neurovascular structures.
Explanation of each option:
· (a) Clavicle – Correct answer. Commonly called the collar bone, it's located horizontally at the top of the chest.
· (b) Scapula – Also called the shoulder blade, it's a flat, triangular bone that connects with the clavicle and humerus.
· (c) Humerus – The long bone of the upper arm, connecting the shoulder to the elbow.
· (d) Radius – One of the two bones of the forearm, located on the lateral (thumb) side, below the elbow.