Study the table given below and answer the following questions.
Table gives information about total number of students in 3 different schools in 1999 & 2000 and also gives information about total number of girls in these 3 schools in 1999 & 2000.

Total number of girls in school - A, B & C together in 1999 are how much more or less than total number of girls in school - A,B & C together in 2000?

Options

A. 140
B. 60
C. 180
D. 90

Answer

B