Walther & Welch Associates was incorporated in $2010.$

It had taxable income $($or loss$)$ through $2017$ as follows:

Assuming year $2017$ has been completed and the tax rate is $40\%,$ what was the adjusted taxable income for year $2016?$

a$.$ $$10,000$

b$.$ $$15,000$

c$.$ $$20,000$

d$.$ $$25,000$

e$.$ None of the above