Which of the following individuals qualify for the earned income credit?
a. Thomas is single, 21 years old, with no qualifying children. His income consists of $9,000 in wages.
b. Shannon, who is 27 years old, maintains a household for a dependent 11-year-old son and is eligible for head-of-household tax rates. Her income consists of $16,050 of salary and $50 of taxable interest (Shannon's AGI is $16,100).
c. Keith and Susan, both age 30, are married and file a joint return. Keith and Susan have no dependents. Their combined income consists of $28,500 of salary and $100 of taxable interest (their AGI is $28,600).
d. Colin is a 26-year-old, self-supporting, single taxpayer. He has no qualifying children and generates earnings of $9,000.