How should the analyst set target value by month?

An analyst wants to set up a monthly revenue target for search engines from Google C Russia within a calendar year.

How should the analyst set target value by month?
A . Select granularity “entire period” and add target value by month
B . Select granularity “entire period”, add target value, and divide target by 12
C . Select granularity “monthly”, add target value, and divide target by 12
D . Select granularity ‘monthly” and add target value by month

Answer: C