Which of the following events may be a result of a new, fatal disease that affects only senior citizens?

Aa decline in the birth rate
Ba narrow band at the bottom of an age structure diagram
Can increase in the birth rate
Dan increase in the death rate of post-reproductive individuals

Verified Answer :

D) an increase in the death rate of post-reproductive individuals

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Answer:

D) an increase in the death rate of post-reproductive individuals

Explanation:

The senior citizens represent the individuals that are in their post-reproductive age. Any disease that affects only the old age individuals would reduce their number in the population. Since these old age individuals have crossed their reproductive age and are in post-reproductive age, the death rate of these post-reproductive individuals would be higher in the population.