How is a cohort used in the construction of a life table?

• A. A cohort is a group of individuals of the same age followed through time to assess survival and mortality.
• B. A cohort represents the genetic makeup of a population.
• C. A cohort is a group of unrelated species living in the same habitat.
• D. A cohort is the total number of individuals in a population at a given time.

Answer: (A)