An Increase in the Population and Hence the Supply of Labour

An increase in the population and hence the supply of labour causes a

A) shortage of labour at the original real wage rate and the real wage rate will fall.
B) shortage of labour at the original real wage rate and the real wage rate will rise.
C) surplus of labour at the original real wage rate and the real wage rate will rise.
D) surplus of labour at the original real wage rate and the real wage rate will fall.