Amber$$ employer, Lavender, Inc., uses a section $401($k$)$ plan that permits salary deferral elections by its employees. Amber$$s salary is $$99,000,$ her marginal tax rate is $24\%$ and she is $42$ years old.

A$.$ What is the maximum amount Amber can elect for salary deferral treatment for $2022?$

B$.$ If Amber elects salary deferral treatment for the amount in part $($a$),$ how much can she save in Federal income taxes?

C$.$ What amount would you recommend that Amber elect for salary deferral treatment for $2022,$ considering only the Federal income tax effects?

D$.$ What would be your answer to A if Amber was $55$ years old?