**Core Concept**
The Spanish windlass is a method used in strangulation, a form of mechanical asphyxia. It involves the use of a ligature or cord to constrict the neck, often in a manner that causes rapid loss of consciousness and death.

**Why the Correct Answer is Right**
The Spanish windlass technique is characterized by the use of a cord or ligature that is passed around the neck in a figure-of-eight pattern, with the ends of the cord then being pulled tight to constrict the neck. This method is particularly effective in causing rapid and severe compression of the neck structures, including the trachea, esophagus, and major blood vessels. The ligature can be tightened by a mechanism such as a pulley or a lever, which is where the term "windlass" originates.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not describe a method of strangulation.
**Option B:** This option is incorrect as it is actually a different method of strangulation, not the Spanish windlass.
**Option C:** This option is incorrect as it refers to a different type of asphyxia altogether.

**Clinical Pearl / High-Yield Fact**
The Spanish windlass is a particularly deadly method of strangulation due to its ability to cause rapid and severe compression of the neck structures, often resulting in death within minutes.

**Correct Answer: C. Strangulation**