read the sentence. the students found the grammatical rules incredibly simple to understand and use. which…

read the sentence. the students found the grammatical rules incredibly simple to understand and use. which word does the underlined phrase modify? students found rules understand
Answer
Brief Explanations:
The phrase "incredibly simple" describes the nature of the "grammatical rules", indicating how easy they are to understand and use. Adjectives or adjective - like phrases modify nouns. Here, "rules" is a noun.
Answer:
C. rules