**Core Concept**
Amnesia refers to a condition characterized by a loss of memory, which can be anterograde (inability to form new memories) or retrograde (loss of previously formed memories). This condition can arise due to various neurological disorders, injuries, or diseases affecting the brain's limbic system, particularly the hippocampus.

**Why the Correct Answer is Right**
The correct answer involves the involvement of the **hippocampus**, a crucial structure in the limbic system responsible for forming new memories. Injuries or diseases affecting the hippocampus can lead to anterograde amnesia, where individuals struggle to form new memories. This is often seen in cases of traumatic brain injury, encephalitis, or Alzheimer's disease.

**Why Each Wrong Option is Incorrect**
* **Option A:** Temporal lobe damage can indeed affect memory, but it is more commonly associated with **seizures** and **epilepsy** rather than amnesia.
* **Option B:** Frontal lobe damage is often linked to **executive function deficits**, such as difficulty with planning, decision-making, and motor control, rather than amnesia.
* **Option C:** Pons and medulla oblongata damage are more commonly associated with **cranial nerve deficits** and **autonomic dysfunction** rather than amnesia.

**Clinical Pearl / High-Yield Fact**
The **Korsakoff syndrome**, a condition often resulting from chronic alcohol abuse, is characterized by anterograde amnesia and confabulation, where individuals fill in gaps in their memory with fabricated information.

**Correct Answer: C. Pons and medulla oblongata**