Answer:
A. Cafeteria plan
Explanation:
Heidi's employer offers paid vacations and health and life insurance as well as a 401(k) but she is only participating in the 401(k) plan.
This is a part of Cafeteria plan.
A Cafeteria Plan is a reimbursement plan that allows the employees to contribute some amount of their gross income to a designated account before taxes are calculated.