Peter is interested in pursuing a training program with the centers for disease control and prevention after he receives his phd, which will allow him to further develop his research on adolescent suicide and broaden his research skills under the supervision of cdc researchers.

The answer is "postdoctoral training program".

The postdoctoral program gives a chance to one individual to partake in a program of concentrate connected specifically to on-going examination exercises. Postdoctoral preparing program gets ready researchers to examine the hereditary, cell, and biochemical instruments that underlie neurodegenerative illnesses, for example, Alzheimer's, Parkinson's diseases.

1.world in spatial terms2.places and regions 3.human systems4.physical systems5.geography and it's uses6.environment and society

Ithink it would be choice b (county). hope this you!