In $2024,$ if a dependent child has no earned income and $$3,500$ of unearned income, what amount would be subject to the Tax for Certain Children Who Have Unearned Income $($Kiddie Tax$)$ and is taxed at their parent$$s marginal Federal income tax rate?

A$.$ $$0$

B$.$ $$900$

C$.$ $$1,000$

D$.$ $$2,000$