Carla and Anthony Are a Married Couple

Carla and Anthony are a married couple. Carla had earned income of $21,500 and had $2,750 withheld in federal income taxes by her employer, and Anthony was a full-time student. Based on their status and income, Carla should file a

A) joint tax return seeking a refund of $2,750.
B) single filer tax return seeking a refund of $1,820.
C) married but filing separate tax return seeking a refund of $1,820.
D) head of household tax return seeking a refund of $2,435.