The expected annual maintenance expense for a new piece of equipment is $10,000. This is alternative A. Alternatively, it is possible to perform the maintenance every fifth year at a cost of $50,000 (alternative B). In either case, maintenance will be performed in the fifth year so that equipment can be sold for $100,000 at that time. If the MARR is 15% per year after income taxes, which alternative should be recommended in each of these situations? a) Before income taxes are considered. b) After income taxes are considered when t=40%