Answer:
12
Step-by-step explanation:
This a Venn Diagram.....the shaded overlapping area is common to both sets.... it must be a multiple of 3 AND a multiple of 4
12 would work....Right?
B. 12.
The numbers that will go into the shaded area are those who are divisible by 3 and 4.
12 = (3*4)is the only one in the list.
