Mr. king,ms. Lee,and mr. Patel own pizza shop together. They estimatedd the number of customers over the past 10years. Mr.King estimated they served 15,000 customers. Ms.Lee estimated 15,500 customers. Mr.Patel estimated 20,000 customers.

Which actual number of customers below would make all 3 owners correct on their rounded estimates of customers.?
a. 14,490
b. 15,152
c. 15,489
d. 15,771

(i don't think any choice is right).

I agree none of the answers is right.