Question

the fact that older adults working memory can be improved through training most implicates which of the following?

brain plasticity
motivation for independence
genetics
knowledge base

Explanation:

To solve this, we analyze each option:

• Brain plasticity: Brain plasticity (neuroplasticity) refers to the brain's ability to change and adapt, including improving cognitive functions like working memory through training. This matches the scenario of older adults' working memory improving with training.
• Motivation for independence: This relates to a person's drive for self - reliance and has no direct connection to the improvement of working memory through training.
• Genetics: Genetics deals with inherited traits. Working memory improvement through training is not an inherited trait - based phenomenon.
• Knowledge base: A knowledge base is about the information one has, not about the ability to improve working memory through training.

Answer:

A. brain plasticity