Someone asks you to name the 22nd president of the United States, but you can’t remember. To aid your memory, the person then tells you that the president’s name is the same as that of a large city on Lake Erie. Upon hearing the hint, you instantly realize that Grover Cleveland is the answer. In this situation, the hint acted as a(n) .

Retrieval cue.

Explanation:

A retrieval cue is a stimulus that triggers recall and recognition of memory. The phenomenon of retrieval cue relies on additional information that is given to person to recall a particular event or information.Without additional output of information, retrieval cue cannot be triggered. Here, when someone aids to my memory about the name of 22nd President of U.S so that I could remember the name of the president, the additional information aided to me acts as a retrieval cue.