Dave is a congenitally deaf individual who is conversing with his friend Robert. As they are communicating, Dave makes eye contact with Robert while depending on his peripheral vision to interpret Robert's hand and arm motions. As a result, Dave uses the brain systems that would normally be involved in hearing and processing spoken language for processing visual information instead. This exemplifies plasticity.

Experience-dependent Plasticity

Explanation:

Experience-dependent Plasticity occurs when the brain becomes rewired to function and construct visible actions which is  based on an individual's constant experience which is unique to such individual when faced with similar stimulus.

Here, Dave who is congenitally deaf is  using his brain systems  which is  involved in hearing and processing spoken language for processing visual information when communicating with Robert shows Experience- dependent Plasticity of the brain

The correct answer is: Neural plasticity.

Explanation:

The concept neural plasticity is one frequently studied in medicine, psychology, neuro-psychology and psychiatry and it refers to the ability that the neurons have to modify their function and forms in response to the environmental needs of the individual.

In this particular case, Dave is congenitally deaf but his brain has adapted the brain systems that would normally be involved in hearing and processing spoken language for processing visual information due to Neural Plasticity.

answer; ///i believe the correct answer is (b) the writing of the ancients who lived in india after the indus valley inhabitants died out;

answer; earthquake;