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 2015?

A) $6,300
B) $9,250
C) $10,150
D) $12,600
E) None of the above