Answer :
Final answer:
A homecoming mum is a type of corsage typically worn during high school homecoming festivities and is also known as a garter, not a boutonniere, wristlet, or promenade, option 3 is correct.
Explanation:
option 3 is correct. A homecoming mum, which is derived from the tradition of wearing corsages, is also known as a garter. It is not a boutonniere, wristlet, or promenade, which are other forms of floral arrangements or customs associated with formal events such as proms and dances.
Unlike the boutonniere that is worn by men on the lapel, or a wristlet that is typically a smaller corsage worn on the wrist, a homecoming mum is traditionally a large, ornate corsage worn by girls in certain regions like Texas as a part of high school homecoming celebrations. It is designed to be pinned to clothing or worn around the neck with ribbons and may include trinkets and decorations that reflect the wearer's interests and school spirit.