Answer:
The answer is A. internal summary.
Explanation:
Internal summaries are the opposite of internal previews. While the latter intends to let the audience know the points that will follow, internal summaries refer to a previous point in the speech. It is then possible to reinforce the information presented or expand it.
An easy way to identify internal summaries are expressions like "As we have seen", "In other words" or "As I've noted previosuly".
