Question

When and why do good speakers change their tone of voice during a speech?

Changing your tone of voice lets your listeners know that your oral report is almost finished.
Changing your tone when you talk about a different example is a good way to signal that you’ve switched topics.
Changing your tone of voice helps you to emphasize a point and also makes your speech less boring.

Answer 1

Changing your tone of voice helps you to emphasize a point and also makes your speech less boring.

Step-by-step explanation:

Answer 2

the third answer is correct