Compute the $2023$ standard deduction for the following taxpayers.

If an amount is zero, enter $"$O$".$

Click here to access the Exhibits $3\mathrm{.}4$ and $3\mathrm{.}5$ to use.

a$.$ Ellie is $15$ and claimed as a dependent by her parents. She has $$1,450$ in dividends

income and $$2,600$ in wages from a part$-$time job.

b$.$ Ruby and Woody are married and file a joint tax return. Ruby is age $66,$ and Woody

is $69.$ Their taxable retirement income is $$11,065.$

c$.$ Shonda is age $68$ and single. She is claimed by her daughter as a dependent. Her

earned income is $$330,$ and her interest income is $$560.$

d$.$ Frazier, age $42,$ is married but is filing a separate return. His wife itemizes her

deductions.