The correct option is B 48
Multiples of 12:
12x1 = 12;
12x2 = 24;
12x3 = 36;
12x4 = 48;
12x5 = 60;
Multiples of 12 are 12, 24, 36, 48 and 60.
Multiples of 16:
16x1 = 16;
16x2 =32;
16x3=48;
16x4=64;
16x5=80
Multiples of 16 are 16, 32, 48, 64 and 80.
Listing down the first five multiples , we see 48 is a common multiple of 12 and 16.