Assume That a War Reduces a Country's Labour Force but Does

Assume that a war reduces a country's labour force but does not directly affect its capital stock. Then the immediate impact will be that:

A) total output will fall, but output per worker will rise.
B) total output will rise, but output per worker will fall.
C) both total output and output per worker will fall.
D) both total output and output per worker will rise.