The _____ of a poem contain context clues that let the reader know what the poem is about.purposesmain ideassupporting detailsthemes

The correct answer is main ideas.

Explanation:

The main ideas of a poem serve as a summary of what the poem is fundamentally about. These ideas help to convey the central themes and emotions expressed by the poet. By identifying the main ideas, readers can glean insight into the poem's overall message, tone, and significance.

Context clues within the text—such as imagery, diction, and tone—contribute to the understanding of these main ideas. The main ideas are essentially the backbone of the poem, providing a framework that supports the exploration of deeper themes and supporting details. Recognizing these will lead to a more comprehensive interpretation of the poem's content and the emotions it aims to evoke.

Understanding main ideas allows readers to appreciate the intricacies of poetic structure and style, further enriching their literary experience.