(A) Infant mortality rate is number of deaths under one year of age occurring among the live births in given geographical area during a given year.
(B) Net Attendance ratio is defined as the ratio of the number of people
in the official age-group attending any educational institution in a particular
class-group to the total number of people in the age group.
(C) Literacy rate is the total percentage of the population of an area at a particular time aged seven years or above who can read and write with understanding.