Christopher Bentley purchased a 10-year-old Saab with 130,000 miles on its odometer for $2,000. His state mandates that he have automobile insurance for the vehicle. The cost of insurance may be more than the purchase price of the Saab. He wants to fulfill the state requirements, have adequate coverage, and keep the cost for the insurance low. Which coverage is the least necessary?

A. Collision.

B. Liability.

C. Medical payments.

D. Uninsured motorist.