In 2023, Morgan is single, is a full-time student, and lives with her parents. She receives \($4,000\) of taxable interest income from some bonds she inherited. Determine whether the kiddie tax applies to Morgan for each situation.

a. Morgan is age 17, and the \($4,000\) is her only income.

b. Assume the same facts as in part

a, except Morgan is age 18.

c. Morgan is age 21. She also receives \($8,000\) of wages, which is greater than one-half of her total support.

d. Assume the same facts as in part

c, except the wages are less than one-half of her total support.

e. Morgan is age 20 and a part-time student. She also receives \($7,500\) of wages, which is less than one-half of her total support.