Final answer:
The potentially least expensive over the life of the contract is the D) Limited payment policy.
Step-by-step explanation:
Out of the given options, the potentially least expensive over the life of the contract is the Limited payment policy. Unlike whole life insurance policies, which require premium payments throughout the insured's life, a limited payment policy allows the policyholder to pay premiums for a fixed period of time.
After the payment period is completed, coverage continues for the entire life of the insured without any further premium payments.