Instructions: 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: the average of the marks of 25 students in a class is 70 . if the marks of each student are doubled , find the new average ?
Options: a ) 140 , b ) 100 , c ) 85 , d ) 160 , e ) 190
Output:
a