**Core Concept**
The anatomical snuff box is a triangular deepening on the radial, dorsal aspect of the hand. It is bounded by three tendons: the extensor pollicis longus, extensor pollicis brevis, and abductor pollicis longus. The roof of the anatomical snuff box is formed by the tendons of the first dorsal interosseous and the extensor pollicis brevis.

**Why the Correct Answer is Right**
The first dorsal interosseous muscle is one of the four dorsal interossei muscles that are involved in finger abduction. The roof of the anatomical snuff box is formed by the tendons of the first dorsal interosseous muscle and the extensor pollicis brevis. This is due to the anatomical arrangement of the tendons and the muscles in the hand.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not related to the anatomical snuff box and is therefore incorrect.
* **Option B:** This option is incorrect because the tendons of the first dorsal interosseous and extensor pollicis brevis form the roof of the anatomical snuff box, not the tendons of the other muscles or nerves.

**Clinical Pearl / High-Yield Fact**
The anatomical snuff box is a clinically relevant landmark in the hand, and its tendons are often used as a reference point for various hand procedures and diagnoses.

**Correct Answer: C. Tendons of the first dorsal interosseous and extensor pollicis brevis.**