Answer:
A: 1
B: 2
C: 4
Step-by-step explanation:
The factors of 12 are 1,2,3,4,6,12.
The factors of 16 are 1,2,4,8,16.
1, 2, and 4 were the ones missing.
A, B, and C, are factors of 12 and 16.
1, 2, 4.
1, 2, and 4 are factors to both 12 and 16 and it makes sense.
