Which statement is true about supporting details in a text?

a.

the purpose of supporting details is to support the reader’s curiosity until the main idea is revealed.
b.

supporting details in expository texts serve a different purpose than supporting details in narrative text.
c.

it may be necessary to read through a text more than once to identify the details that support or develop the main idea.
d.

supporting details should be either facts or expert testimony, but not explanations or definitions.