Bea is 70 years old and works part-time at a discount store. she keeps herself busy by engaging in various activities she enjoyed during middle adulthood. she volunteers occasionally at a local food bank and enjoys the company of her family and the members of her bridge club. according to the theory of aging, bea is aging successfully

Activity.

Explanation:

Aging may be defined as the process of growing old with the increasing age. The shortening of telomeres in human being is considered as the main cause of aging.

Activity theory of aging states that the aging is successful when older individual is healthy and perfectly maintains the social interactions. Bea is around 70 and is quiet healthy and active. She maintains the social interaction with other individuals. This, determines the activity theory of aging.

Thus, the answer is activity.

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