Richard and Alice Kelley Lived Apart During 2012 and Did

Richard and Alice Kelley lived apart during 2012 and did not file a joint tax return for the year. Under the terms of the written separation agreement they signed on July 1, 2011, Richard was required to pay Alice $1,500 per month of which $600 was designated as child support. He made 12 such payments in 2012. Assuming that Alice has no other income, her tax return for 2012 should show gross income of:

A) $0
B) $5,400
C) $10,800
D) $12,600