question_answer

Refer the following data table and answer the question.

Measured on Birthday	Height of the child (in cms.)
4	100
5	105
6	115
7	120
8	125
9	130
10	135
11	145
12	150
13	155
14	160
15	170
16	180

What was the increase in the height of the child from the 9th Birthday to the 15th Birthday?

A)  45 cm.                        

B)  40 cm.

C)  35 cm.                        

D)  50 cm.