Question

is the following word a base word? preheat a yes b no

Explanation:

A base word is a standalone word that can have affixes added to it. "Preheat" is made by adding the prefix "pre-" (meaning before) to the base word "heat". Since "preheat" cannot stand as a root word to which affixes are added and is a derived term, it is not a base word.

Answer:

B. No