Ms$.$ Teague incurred a $$35,000$ expense. If her marginal tax rate is $20\%,$ which of the following statements is true?a$)$ If the expense is nondeductible, Ms$.$ Teague's after$-$tax cost is zero.b$)$ If the expense is deductible, Ms$.$ Teague's after$-$tax cost is $$28,000.$c$)$ If only $$17,500$ of the expense is deductible, Ms$.$ Teague's after$-$tax cost is $$14,000.$d$)$ If the expense is nondeductible, Ms$.$ Teague's after$-$tax cost is zero and, if the expense is deductible, Ms$.$ Teague's after$-$tax cost is $$28,000.$