Dale started his speech on financial planning with a story about his cousin Mike's bankruptcy hearing. In the conclusion, Dale gave an update on Mike's current financial condition. According to your textbook, referring to the introduction in the conclusion is a way to

Give the speech psychological unity.

Explanation:

In delivering a speech a good beginning is considered important but the one who knows how to end a speech well is the one who has mastered in delivering a speech. Not only does a good beginning but a good ending matters in delivering a speech. The conclusion is considered the climax of a speech.

Referring to the introduction in the conclusion is considered the best way of concluding your speech by creating a psychological unity. Creating a psychological unity in a speech is done when the orator brings the introduction to the conclusion and creating the unity between the introduction and conclusion of the speech.

In the given scenario, Dale has used the criteria of giving the speech psychological unity. Thus the correct answer is 'Give the speech psychological unity.'

the correct answer option is b. a single paragraph.

explanation:

when you are thinking about paragraph​ topics, you should always choose a subject that can be adequately addressed in a single paragraph.

a paragraph is a piece of writing consisting of a few sentences that deal with a single theme. it has only a single idea that the paragraph revolves around and talks about.

so a paragraph topic must be chosen wisely where a single idea can be communicated in a single paragraph.