Ralph earns $$200,000$ per year at Virtual Reality Solutions LLC$,$ where he has worked for $10$ years. Virtual Reality Solutions sponsors a defined benefit plan equal to $2\%$ per year of service of the employees final compensation. At the current time, what is Ralph's retirement payable from the defined benefit plan?

a$.)$$$40,000$ per year

b$.)$$$4,000$ per month or $$48,000$ per year

c$.)$$$20,000$ per year

d$.)$$$100,000$ per year