Answer:
The statement Ivory should keep in mind is:
a. A speaker’s personal appearance should be in keeping with the occasion of the speech.
Explanation:
Clothes do influence listeners' attitudes, so letters C and D are eliminated. However, there is no evidence that bright-colored clothing has a more favorable impact on listeners. As a matter of fact, depending on the occasion, they might be unsuitable and distracting. That also eliminates letter B and, consequently, letter E. The only correct option is letter A. Ivory must keep in mind what type of occasion this is. Her clothes must be adequate. It would, for instance, be a blunder if were to wear informal clothes, such as jeans and a t-shirt, to a formal meeting.