Answer:
1107.
You are rounding up because the number in the tenths slot is over 5.
So since you have the ratio of 1 : 4
we need to find 3 : x
since 1*3 = 3. We multiply all by 3
4*3 =12.
Answer is 12
A is 18
B is 162
C is 18
D is 162