Which of the following determines the size of a country’s population?

(I) Birth rate (II) Death rate (III) Migration rate (IV) Importation rate (V) Unemployment rate

A. (I), (II) and (V)
B. (II) and (IV)
C. (I),(II) and (III)
D. (IU) and (V)

Correct Answer: Option C

C. (I),(II) and (III)