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Increases in life expectancy in the United States during the twentieth century were due primarily to a. the control of childhood and infectious diseases. b. the fitness boom. c. increased use of vitamin
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Increases in life expectancy in the United States during the twentieth century were due primarily to

a. the control of childhood and infectious diseases.
b. the fitness boom.
c. increased use of vitamin supplements.
d. the defeat of chronic illness.

User Walt Corey
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2 Answers

5 votes

Answer:A. the control of childhood and infectious diseases.

Explanation: Life expectancy began to rise due to better sanitation and education in the twentieth century

User Brian McCall
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5 votes

Answer:

the correct answer is d

User Olexiy Pyvovarov
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