_identify the extent of a public health problem __ identify the source of a disease outbreak in a given community __ identify those who are at greatest risk for disease, injury, disability, or death __ monitor disease and other health-related events over time a, b, a, a

The correct answer is: B. Changes made to proteins lead to changes in behavior.

Genes do not impact neuron functioning directly, but rather encode proteins that build and control the functioning of the brain through which behavior is expressed. Behavior is influenced by both, inheritance and environment. So, for example, social information (environmental influence) can impact brain gene expression via epigenetic modifications.