a supporting text may be\n○ the opening paragraph of a main text.\n○ the concluding paragraph of a main…

a supporting text may be\n○ the opening paragraph of a main text.\n○ the concluding paragraph of a main text.\n○ a quote providing evidence in a main text.\n○ set off in a format different from the main text.
Answer
Brief Explanations:
A supporting text gives evidence or additional information. A quote providing evidence in a main text serves this purpose. The opening and concluding paragraphs are part of the main - text structure and not supporting texts. Also, while a supporting text can be set off in a different format, this is not the defining characteristic. The key is its function as evidence.
Answer:
a quote providing evidence in a main text.