Correct Answer: (c) Health
Note: The full form of ABC index is 'Achievements of Babies and Children index". The ABC index is an unweighted average of the four indicators related to well-being and health of children. These four indicators are:
Survival, Immunization, Nutrition and Schooling. Each indicator is measured in percentage terms, and can be roughly interpreted as the probability that an average child in the relevant state achieves a particular goal: survival until age five, full immunization, adequate nourishment and school participation, respectively. As three out of four indicators are directly related to the health of children, option (c) is the most appropriate answer.