On January 1, 2011, G Corporation agreed to grant its employees two weeks vacation each year, with the stipulation that vacations earned each year can be taken the following year. For the year ended December 31, 2011, G's employees each earned an average of $800 per week. 500 vacation weeks earned in 2011 were not taken during 2011. Wage rates for employees rose by an average of 5 percent by the time vacations actually were taken in 2012. What is the amount of G's 2012 wages expense related to 2011 vacation time?
A. $400,000
B. $420,000
C. $20,000
D. $0