The Data in the Table Above Shows the Consumption by Families

The data in the table above shows the consumption by families in an economy.The year 2015 is the reference base period.
-Based on the table above,the CPI for 2015 is

A) 98.5.
B) 102.5.
C) 105.1.
D) 100.
E) 5.0 per cent.