In a (blank), a person is assigned a status at birth and remains at that level throughout life. a. a caste system
C. a closed system
b. an open system
d. a class system

What is the main difference between hearing and listening? a) hearing is easy; listening is hard. b) hearing involves the outer ear; listening involves the inner ear. c) hearing is the physical activity; listening involves processing the information. d) none of the above