Epidemiology is defined as the study an analysis of the root cause and the pattern of a disease in a defined population.
Hence the option a is not correct.
Behavioral ecology is defined as the study of the evolutionary basis for animal behavior due to environmental and ecological pressures.
Hence the option b is not correct.
Behavior genetics as the name indicates it examines the role of genetics on behavior in humans and animals. It views behavioral differences from three genetic and environmental sources
• Influences point to genetic effects
• Influences from environment shared by siblings
• Influences that raised from unshared environment
Hence the correct option is .