**Core Concept**
The inferior angle of the scapula serves as a crucial landmark in clinical anatomy, particularly during the examination of the musculoskeletal system. It is essential to understand the spatial relationship between the scapula and the thoracic cage.

**Why the Correct Answer is Right**
The inferior angle of the scapula is typically located at the level of the 7th thoracic vertebra (T7) or the 8th rib, which is approximately 6-8 cm below the clavicle. This is due to the scapula's position on the posterior chest wall, where it forms the posterior wall of the axilla. The scapula's inferior angle is a key reference point for assessing the position and movement of the scapula during various movements like abduction and adduction of the arm.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect as the inferior angle of the scapula is not typically located at the level of the 2nd rib, which is too high and above the clavicle.
* **Option B:** This option is incorrect as the inferior angle of the scapula is not typically located at the level of the 10th rib, which is too low and below the 8th rib.
* **Option D:** This option is incorrect as the inferior angle of the scapula is not typically located at the level of the 5th rib, which is too high and above the 7th thoracic vertebra.

**Clinical Pearl / High-Yield Fact**
The inferior angle of the scapula is an essential landmark for assessing scapular winging, which is often associated with muscle weakness or paralysis of the serratus anterior muscle. Remember that the inferior angle of the scapula is typically located at the level of the 7th thoracic vertebra or the 8th rib.

**Correct Answer:** C.