Stan, a single taxpayer, has $1,700 of state income taxes withheld from his wages in the current year. In the current year, he also received a $320 refund on his prior year state income tax. Stan did not itemize last year but he intends to do so this year. Stan used the sales tax estimate tables and determined his sales tax deduction amount is $1,600. What amount should Stan deduct for state taxes?

a) $1,600

b) $1,380

c) $0

d) $1,700

e) None of these choices are correct.