What is the difference between summarizing and paraphrasing?

What is the difference between summarizing and paraphrasing?

• A. Summarizing restates the main idea briefly; paraphrasing restates details in your own words while keeping the same length.
• B. Summarizing restates the main idea briefly; paraphrasing restates details in your own words while keeping the same length.
• C. Summarizing uses quotes; paraphrasing uses no quotes.
• D. Summarizing adds your own opinions; paraphrasing replaces the original ideas.

Answer: (B)