1. Amy, age 19 and single, has $8,050 of wages, $800 of interest, and $350 of self-employment income.

A. Amy need not file because her gross income is less than the threshold of $10,000 and her self-employment income is less than $400.

B. Amy must file even though her gross income is less than the threshold of $10,000, her self-employment income is greater than $300.

C. Amy must file because her gross income exceeds the limit.

D. Amy need not file because her gross income is less than the threshold of $10,000 and her self-employment income is less than $800.

2. Betty, age 67 and single, has a taxable pension of $9,100 and Social Security benefits of $6,200.

A. Betty must file as her gross income exceeds the limit.

B. Betty need not file, as her gross income is less than $11,500.

C. Betty need not file, as her gross income is less than $10,950.

D. Betty need not file, as her gross income is less than $10,000.

3. Chris, age 15 and single, is a dependent of his parents. Chris has earned income of $1,900 and interest of $400.

A. Chris must file, as his gross income of $2,300 exceeds his standard deduction of $2,250.

B. Chris need not file because his gross income of $2,300 is less than the threshold of $10,000.

C. Chris need not file because his gross income of $2,300 is less than the standard deduction of $6,100.

D. Chris must file, as his gross income of $2,300 exceeds his standard deduction of $1,000.

4. Dawn, age 15 and single, is a dependent of her parents. She has earned income of $400 and interest of $1,600.

A. Dawn must file because her unearned income is over $1,000, even though her total gross income is less than the standard deduction of $6,100.

B. Dawn must file because her unearned income is over $1,000, even though her total gross income is less than the threshold of 10,000.

C. Dawn must file because her unearned income is over $1,000 and her total gross income exceeds her standard deduction.

D. Dawn need not file because her total gross income is less than the threshold of $10,000.

5. Doug, age 25, and his wife are separated. He earned $5,000 while attending school during the year.

A. Doug need not file because his gross income is less than the threshold of $10,000.

B. Doug need not file because his gross income is less than the standard deduction of $6,100.

C. Doug must file because his gross income is over $3,800 and he is married and not living with his spouse.

D. Doug must file because his gross income is over $3,900 and he is married and not living with his spouse.