Colin (Age 40)is Single,itemizes His Deductions,and Has AGI of $100,000

Colin (age 40) is single,itemizes his deductions,and has AGI of $100,000.Colin provided the following information about his cash expenditures for 2015: Interest on American Express card 1,200
Points to refinance his home for 10 years at the end of December 2,600
Mortgage interest payments 11,800
Real estate taxes 2,100
State income taxes withheld on salary 5,400
Additional state income tax estimated payment 1,200
Contribution to Republican Party 2,000
Contribution to United Way 500
If Colin itemizes,what are his total itemized deductions in 2015:

A) $18,100
B) $21,000
C) $24,200
D) $27,000