Barbara is not that her son steven has not moved out of the house yet at thirty years of age and still expects her to do his laundry, dishes, and cleaning. barbara’s belief that his identity should have changed as he grew up demonstrates the concept that identities are
a. enactedb. staticc. performedd. mutable

The correct option here is D) mutable

Explanation:

When there is a change in the value of a object or identity over a period of time , it is called as mutable, and when the value of an object or identity doesn't change over time , it is called as immutable.

In this case Barbara's son , Steven has not made any change in its identity, but Barbara expected that his identity should have changed as he grew up , so we can say that she was expecting the concept that identities are mutable.

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