Problem:
In 2011, Carlos filed his 2010 state income tax return and paid taxes of $800. Also in 2011, Carlos's employer withheld state income tax of $750 from Carlos's salary. In 2012, Carlos filed his 2011 state income tax return and paid an additional $600 of state tax.
Required:
Question: How much state income tax can Carlos deduct on his 2011 federal income tax return for state income tax?
a. $1,350
b. $1,400
c. $1,550
d. $2,150
Note: Please show the work not just the answer.