**Core Concept**
Mugging is a form of strangulation that involves the compression of the neck, leading to respiratory distress and potential loss of consciousness. This type of injury is often caused by external compression of the neck, which can be achieved through various means such as manual strangulation or the use of a ligature.

**Why the Correct Answer is Right**
Mugging typically involves the compression of the carotid sheaths, which contain the common carotid arteries, internal jugular veins, and vagus nerves. The compression of these structures can lead to a decrease in blood flow to the brain, resulting in symptoms such as dizziness, confusion, and eventually loss of consciousness. The correct answer is **Choking by a ligature**, which is a common method used in mugging to compress the neck and restrict blood flow.

**Why Each Wrong Option is Incorrect**
**Option A:** Strangulation by a rope is a different form of neck compression, but it is not typically referred to as mugging.
**Option B:** Hanging is a form of strangulation that involves suspension of the body from a ligature, which is not the same as mugging.
**Option C:** Cervical spine injury is a possible outcome of neck compression, but it is not the definition of mugging.

**Clinical Pearl / High-Yield Fact**
Mugging can be distinguished from other forms of strangulation by the presence of petechial hemorrhages in the skin and mucous membranes, which are caused by the compression of the carotid arteries.

**Correct Answer: B. Hanging is a form of strangulation that involves suspension of the body from a ligature, which is not the same as mugging.