Maternal Mortality Ratio (MMR) is-

Correct option is A

Sol. Maternal Mortality Ratio (MMR) is defined as the number of maternal deaths per 1,00,000 live births. It is a critical indicator used to assess the quality of maternal healthcare.
Explanation of each option:
· (a) The proportion of maternal deaths per 1,00,000 live births – Correct answer. This is the correct definition of MMR, used globally to measure the risk of maternal death during childbirth.
· (b) The proportion of maternal deaths per 10,000 live births – This is incorrect. MMR is defined per 1,00,000 live births, not 10,000.
· (c) The proportion of maternal deaths per 1000 live births – This is incorrect. The correct unit for MMR is 1,00,000 live births, not 1000.
· (d) The proportion of maternal deaths per 1,00,000 deliveries – This is incorrect. MMR is defined per live births, not per delivery.