Brenda was planning a small dinner party and had gone to a new specialty food store with coupons she'd found in the food section of the paper. at the store she also found a "buy one, get one free" deal and a gift offered with the purchase of a particular dessert. she altered the menu as a result of the and ended up spending less than she'd planned.

Promotion given by the store

Explanation:

Brenda was planning a small dinner party and had gone to a new specialty food store with coupons she'd found in the food section of the paper. At the store she also found a "buy one, get one free" deal and a gift offered with the purchase of a particular dessert. She altered the menu as a result of the romotion given by the store promotion and ended up spending less than she'd planned.

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )