In 2018, Sheryl is claimed as a dependent on her parents' tax return. Sheryl did not provide more than half of her own support.

A. She received $7,000 from a part-time job. This was her only source of income. She is 16 years old at year-end.

B. She received $7,000 of interest income from corporate bonds she received several years ago. This is her only source of income. She is 16 years old at year-end.

C. She received $7,000 of interest income from corporate bonds she received several years ago. This is her only source of income. She is 20 years old at year-end and is a full-time student.

D. She received $7,000 of qualified dividend income. This is her only source of income. She is 16 years old at year-end.

All answers should be calculated using the new 2018 rates.