She needed help from a friend to over tighten the strap on her fancy what?\nOptions:\n- brassiere\n- strapline\n- chemise\n- brace\n- golf bag
Step-by-step reasoning process below:
brassiere
Strap of a brassiere can be over tighten with help of a friend.

She had a fancy brassiere.

.

Final answer: brassiere