Sarah is single, 44 years old and earned $5,000 taxable compensation in 2016. She has two traditional IRAs, already contributing $4,000 to the first and $0 to the second in 2016. How much may she contribute to the second IRA in 2016 (to qualify as tax deferred)?

a)$5,500

b)$5,000

c)$1,500

d)$1,000