Question

what part of speech is the italicized word? the politicians preposterous claim caused the audience to roll their eyes. adverb adjective noun verb

Explanation:

To determine the part of speech of "preposterous", we analyze its function. It modifies the noun "claim", describing the nature of the claim. Adjectives modify nouns, so "preposterous" is an adjective. Adverbs modify verbs, adjectives, or other adverbs (not the case here). Nouns are people, places, things, or ideas (not the case). Verbs show action or state (not the case).

Answer:

B. Adjective