The Figure Above Shows the Demand and Supply Curves for High-Skilled

The figure above shows the demand and supply curves for high-skilled (indicated by an "H" subscript) and low-skilled (indicated by an "L" subscript) workers.
-In the figure above,the value of the marginal product of skill creates the difference between the ________ curves and ________.

A) SL and SH; is equal to $10 per hour
B) SL and SH; exceeds $10 per hour
C) DL and DH; is less than $10 per hour
D) DL and DH; is equal to $10 per hour
E) DL and DH; exceeds $10 per hour