What Will Happen to the Demand Curve for Workers in Cotton

What will happen to the demand curve for workers in cotton farms if the price of cotton falls,assuming all else equal?

A) There will be a downward movement along the demand curve for these workers.
B) There will be an upward movement along the demand curve for these workers.
C) There will be a left shift of the demand curve for these workers.
D) There will be a right shift of the demand curve for these workers.