Q: 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'.
Problem: evaluate : 60 - 9 ÷ 3 × 6 = 
Options: a ) 52 , b ) 18 , c ) 42 , d ) 102 , e ) 36
A:
c