In school, John is asked to name the first president of the united states and answers, george washington.

Semantic Memory.

Explanation:

Semantic memory is the long term memory which stores general information or common knowledge. It does not include the information on personal experiences but common information stored a long time ago.

For example, names of animals, plants, continents, etc.

In the given case, the information that was stored in memories of John can be categorized as semantic. Because John is answering the question from the long term memory and it is general or common information.

So, the correct answer is Semantic Memory.