$)$: Gloria has calculated that she needs $$70,000$ her first year of retirement to maintain her standard of living. She expects to receive $$3,000$ per month from her employer defined$-$benefit pension and $$2,000$ per month from Social Security both in her first year of retirement. What is her annual retirement income shortfall.

A$.$ $$8,000$

B$.$ $$10,000$

C$.$ $$16,000$

D$.$ $$22,000$

E$.$ None of the above