**Core Concept**
Contre-coup injuries occur when the brain undergoes a shearing force due to rotational acceleration, resulting in damage to the brain tissue on the opposite side of the impact site. This phenomenon is primarily observed in cases of deceleration injuries, such as falls or motor vehicle accidents.

**Why the Correct Answer is Right**
The mechanism behind contre-coup injuries involves the brain's inertia, which causes it to move in the opposite direction of the force applied, resulting in shearing forces that lead to tissue damage. This type of injury is most commonly seen in the cerebral cortex, particularly in the temporal and parietal lobes. The shearing forces disrupt the axonal membranes and lead to axonal injury, which can result in cognitive and motor deficits.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because the term "contre-coup" specifically refers to the injury on the opposite side of the impact site, not the site of impact itself.
**Option B:** This option is incorrect because coup injuries refer to the damage at the site of impact, not the opposite side.
**Option C:** This option is incorrect because while diffuse axonal injury (DAI) is a type of brain injury, it is not the same as a contre-coup injury, although DAI can be seen in conjunction with contre-coup injuries.

**Clinical Pearl / High-Yield Fact**
It is essential to remember that contre-coup injuries can occur in any direction, not just in the sagittal plane, and can result in a wide range of cognitive and motor deficits. A high index of suspicion for contre-coup injuries is crucial in patients with a history of deceleration injuries.

**Correct Answer: C. Contre-coup injuries are seen in the opposite side of the brain to the site of impact.**