Question

A summary should include

central ideas and your opinion.
central ideas and supporting details.
central ideas and the author’s background.
central ideas and all minor details.

Answer 1

Central Ideas and supporting details

Answer 2

central ideas and supporting details.

Step-by-step explanation:

A summary is "a brief statement or account of the main points of something."

While writing a summary one must point out the major points that are important and must remember. Must use paraphrase while writing a summary using "quotation marks" so that when we get back to the summary we will have important quotes and central ideas handy.