Questions: Remembering what you did on the first day of high school is an example of memory.

The answer is the first one: episodic memory.

Explanation for each option:

1. Episodic memory: This is the correct answer. Episodic memory refers to the ability to recall specific events, situations, and experiences from one's personal past. Remembering what you did on the first day of high school is a specific event in your life, making it an example of episodic memory.

2. Semantic memory: This type of memory involves the recall of general facts and knowledge about the world that are not tied to personal experiences. For example, knowing that Paris is the capital of France is semantic memory. It does not involve recalling a specific personal event, so it is not the correct answer in this context.

3. Implicit memory: This type of memory involves skills and procedures that are performed automatically without conscious recollection, such as riding a bike or typing on a keyboard. It does not involve recalling specific personal events, so it is not the correct answer here.

In summary, remembering what you did on the first day of high school is an example of episodic memory.