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 largest four digit number which is a multiple of 8 , 10,12 and 15 is :
Options: a ) 9960 , b ) 9950 , c ) 9940 , d ) 9930 , e ) 9920
Output:
a