Subject: mathqa
Question: the price of an item is discounted 4 percent on day 1 of a sale . on day 2 , the item is discounted another 4 percent , and on day 3 , it is discounted an additional 10 percent . the price of the item on day 3 is what percentage of the sale price on day 1 ?
Option: 
A: 83.3 %
B: 87.7 %
C: 86.4 %
D: 89.9 %
Answer: C