Answer:20% off is better and it is the only offer which is under the budget.
Explanation:Given,
The original cost of the dining set = $ 1,500,
If there is a off of 20%,
Then the discount on dinning table = 20% of 1500
= $ 300
So, the final amount of the dinning table after 20% off = 1500 - 300 = 1200 < 1250
Thus, it under the budget.
Now, in $ 200 rebate,
The new cost of the dinning table = 1500 - 200 = $ 1300 > 1250,
Thus, it is not under budget.
While, In $150 coupon,
The new cost of the dinning table = 1500 - 150 = $ 1350 > 1250,
Thus, it is not under budget.