Concept:Infant Mortality Rate (IMR) measures the number of deaths of infants under one year of age per 1,000 live births in a given year.
Explanation:Step 1: IMR specifically counts deaths of children before they reach 1 year of age, not 2, 3, or 4 years.
Step 2: The rate is calculated per 1,000 live births in that same year, not per total children.
Step 3: Option D correctly states “proportion of children that dies before the age of 1 year and proportion of 1000 live children born in that particular year”.
Step 4: Options A, B, and C refer to ages 3, 4, and 2 years respectively, which are incorrect for infant mortality.
Step 5: IMR reflects the quality of maternal and child healthcare, nutrition, and sanitation in a region.
Answer:Option D
