What will a decrease in the supply of fishermen do to the market for capital employed in the fishing industry ?

A. increase the demand for fishing boats and decrease rental rates on fishing boats
B. decreases the demand for fishing boats and increase rental rates on fishing boats.
C. decreases the value of the marginal product of fishermen, reduces their wage, and increases employment in the fishing industry
D. increase the demand for fishing boats and increase rental rates on fishing boats