Martin, a 50 Year-Old Single Taxpayer, Paid the Full Cost

Martin, a 50 year-old single taxpayer, paid the full cost of maintaining his dependent mother in a home for the aged for the entire year. What is the amount of Martin's standard deduction for 2014?

A) $6,200
B) $9,100
C) $10,150
D) $12,400
E) None of the above