During the 20th century,which of the following stages of life had the highest mortality rate?

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During the 20th century, the stage of life with the highest mortality rate was infancy, which is defined as the first year of life. This is due to factors such as birth complications, infections, and Sudden Infant Death Syndrome (SIDS). While prenatal and toddlerhood stages also had high mortality rates, the first year of life had the highest. Early childhood had a comparatively lower mortality rate due to improved healthcare and nutrition.

During the 20th Century,which of the Following Stages of Life