Answer:
D. Tip-of-the-tongue phenomenon
Explanation: The Tip-of-the-tongue phenomenon is a term used to describe a situation where a person who is fully aware that he knows a particular subject or something but was unable to recall or collect the knowledge of that thing when it was actually needed,but later when not needed you now recollect or remember that thing you were not able to remember previously.
In 1920, American voters elected a President who promised <u>to increase the U.S. role in world affairs.</u>
