A 2,000 square foot house in New Jersey costs $1,725 each winter to heat with its existing oil-burning furnace. For an investment of $5,000, a natural gas furnace can be installed, and the winter heating bill is estimated to be $1,000. If the homeowners MARR is 6% per year, what is the simple payback period of this proposed investment?

	a.	5 years
	b.	6 years
	c.	7 years
	d.	8 years
	e.	9 years
		f. 10 years * PLEASE SHOW WORK*