The following is a type of proportion ==> a : b = c : d; and in this case we have: 
1 : 12 = 8 : 96 
It's not all that hard, all you need to know is the ''cross-multiplication'' methods for testing this kind of stuff. 
1 : 12 = 8 : 96 ? 
1 * 96 = 12 * 8 ? 
96 = 96 ? 
96 = 96 ==> CORRECT