You receive an email from an impressive-sounding stranger, Professor Alexander Rothschild Renard III, president of the American Institute for Scientific Political Statesmen. He urges you to vote for his presidential candidate choice. This social media red flag is known as pomposity inanity superstition fanaticism

pomposity

Explanation:

Pomposity is a form of social media red flag that centers on individuals or users employing flamboyant captions, words, or catchy phrases to describe something or someone in a way that appears more significant than the reality.

In this case, given that the email is from an "email from an impressive-sounding stranger" means Professor Alexander is using flamboyant words to persuade me to vote for his presidential candidate in a way that is more substantial than the reality.

Hence, in this case, the right answer is POMPOSITY

i think the answer is a or d