Final answer:
The least important factor when considering a service contract for a new car is the salesperson's opinion. Key factors include deductibles, duplication of coverage, and the scope of repairs covered.
Step-by-step explanation:
When deciding whether to purchase a service contract for a new car, the least important question to consider is 'Does the salesperson think I need the contract?' (D). This is subjective and potentially biased, aiming more to increase the salesperson's commission rather than benefiting the car buyer. On the other hand, it's crucial to know if there is a deductible (A), whether the service contract duplicates another warranty (B), and what repairs are covered (C) to evaluate the financial aspects and the scope of coverage offered by the service contract. Considering these elements will enable you to make a more informed and economically sound decision that tailors to your specific needs and the long-term costs of vehicle ownership.