Respuesta :

Answer:The subject has a unique genetic makeup and set of experiences.

Explanation: The subjects were a sample of the entire population,the population contains a more unique set of persons,the subjects used for case studies are usually taken out of the population,which may not be a true representation of the entire population.

Population is totality of people present in a given environment,the individuals present within a population are unique and have their own unique qualities and attribute.