A Woman Marries Her Butler

A woman marries her butler.Before they were married,she paid him $20,000 per year.He continues to wait on her as before (but as a husband rather than as a wage earner) .She earns $1,000,000 per year both before and after her marriage.The marriage:

A) does not change GDP.
B) decreases GDP by $20,000.
C) increases GDP by $20,000.
D) increases GDP by more than $20,000.