Final answer:
The option that is not one of the most common English interrogative pronouns is 'quel', as it is a French interrogative pronoun meaning 'which'. Interrogative pronouns are used to ask questions in a language.
Step-by-step explanation:
Interrogative pronouns are used to ask questions and inquire about specific items, beings, or ideas. The most common interrogative pronouns in English include who, whom, what, which, and whose. In the options provided, quoi is a French interrogative pronoun that means "what", and quel means "which", also in French. However, Qui is indeed an English interrogative pronoun, as it means "who" in French. Therefore, the choice that is not one of the most common English interrogative pronouns is quel. It is important to distinguish between English interrogative pronouns and those from other languages, like French when addressing questions in an English context.