Feng, a Single 40- Year- Old Lawyer, Is Covered by a Qualified

Feng, a single 40- year- old lawyer, is covered by a qualified retirement plan at work. His salary is $115,000, and his total AGI is $129,000. The maximum contribution he can make to a Roth IRA in 2018 is

A) $3,300.
B) $5,500.
C) 0.
D) $2,200.