the yearly profit for a manufacturer that sells its product for x dollars is represented by the table below

x p(x)
20 26,240
30 51,660
40 68.880
50 77,900
60 78,720
70 71,340
80 55,760
90 31,980
100 0

what does the x-intercept represent?
a. the amount of increase in the profit for every ten dollar increase in selling price
b. the number of dollars in profit the manufacturer earns from selling their product
c. the maximum profit the manufacturer can earn from selling their product
d.the selling price of the product that will generate zero dollar in profit

d. the selling price of the product that will generate zero dollar in profit