Supporting details can do all of the enlisted options except introduce the main idea. Supporting details are there to support the main idea, so of course they cannot introduce it. They are the result of the main idea, not its creator.
Answer:
Here are items that you can consider wearing:
A well-pressed shirt or blouse.
A well-fitting sweater or cardigan.
Slacks or a nice pair of pants, such as corduroys and khakis.
A dress or skirt.
A dress shirt and tie (in the case of a more formal meeting).
A blazer or suit jacket (in the case of a more formal meeting).
I think its , voice purity, flexibilities, and, voice strength
