To cover the cost of the new dining room table that costs $1,500, Mr. Smith can use any of the three payment methods mentioned, as follows:
- Cash: He has $2,000 in cash, which is sufficient to cover the $1,500 cost.
- Gift Card: He has a $500 gift card. He would need to pay the remaining $1,000 using cash or credit card.
- Credit Card: He has a credit card with a $1,000 limit. He can use this to pay part of the cost and then pay the remaining $500 with cash.
Therefore, the correct response is: Any of the three payment methods mentioned can cover the cost of the table.