IT SHOULD NOT BE A,IT SHOULD D BECAUSE EVERY TIME WE START FROM 0.HERE,IN THIS QUESTION WHEN WE START FROM 0 THAT IS -4 AND THEN +2.SO,CORRECT ANSWER IS D.
(B): Cost of necklace = ₹ 120
Cost of purse = ₹ 80
Total cost = ₹ 120 + ₹ 80 = ₹ 200
Thus with ₹ 200, she can buy a necklace and purse so that no money will be left with her.