Final answer:
Janice's standard deduction as a dependent is the greater of $1,100 or her earned income plus $350.
Step-by-step explanation:
Janice, as a dependent on her parent's tax return, can claim a standard deduction. The standard deduction is calculated as the greater of $1,100 or the sum of her earned income ($900) and an additional $350. So, the correct answer is (a) The greater of $1,100 or ($900 earned income + $350).