Amy Files as a Head of Household

Amy files as a head of household. She determined her 2018 adjusted gross income was $70,000. During the year, she contributed $2,500 to a Roth IRA. What is the maximum saver's credit she may claim for 2018?

A) $1,000.
B) $2,000.
C) $2,500.
D) $1,250.
E) $0.