Answer: Source amnesia
Explanation: Amnesia is a form of memory loss. Source amnesia, It occurs when a person is capable of remembering certain information but find it difficult (lack of ability) to remember why, where, or when the information is gained. Causes of source amnesia include
1. Dementia
2. Damage to the hippocampus
3. Head injuries
4. Alcohol use
5. Trauma or stress