Researchers now believe that most elderly people a. have average intellectual abilities. b. have superior intellectual abilities. c. lose their intellectual abilities. d. retain their intellectual abilities throughout life.

Researchers now believe that most elderly people D. retain their intellectual abilities throughout life.

Explanation: Researchers believe that has people age, their intellectual abilities will grow with them. They do not lose the knowledge they have but continue to build on it as life passes. By retaining their intellectual abilities, it keeps their brains active.

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