Logs Are Stacked So That There Are 17 Logs in the Bottom

Multiple Choice

Logs are stacked so that there are 17 logs in the bottom row, 16 logs in the second row from the bottom, and so on, decreasing by 1 log each row. How many logs are there in the first five rows from the bottom?

A) 117 logs
B) 108 logs
C) 75 logs
D) 87 logs
E) 125 logs