Jackson is 18 years old and has a dog-sitting business. Calculate the 2019 standard deduction Jackson will claim under the following independent circumstances. a.) Jackson reported $2,000 of earnings from his dog sitting, $300 in interest income from his savings account, and Jacksons parents claim him as a dependent.

b.) Jackson reported $500 of earnings from his dog sitting and $2,000 in interest income from his savings account, and Jacksons parents claim him as a dependent.

c.) Jackson reported $8,000 of earnings from his dog sitting, $3,000 in interest income, and Jacksons parents do not claim him as a dependent.