Definition: In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
Input: Problem: in the set of positive integers from 1 to 60 , what is the sum of all the odd multiples of 5 ?
Options: a ) 180 , b ) 185 , c ) 190 , d ) 160 , e ) 165
Output:
a