Your company will implement any of the following projects, as long as the payback period is at most $4$ years. Select ALL the projects that meet the payback criterion.

Project $1$ Project $2$ Project $3$ Project $4$ Project $5$ Project $6$ Project $7$ Project $8$

Year $0($$$7,400)($$$8,000)($$$9,200)($$$8,100)($$$9,100)($$$7,100)($$$7,800)($$$6,900)$

Year $1$ $$2,300$ $$2,300$ $$2,300$ $$2,900$ $$1,800$ $$2,600$ $$1,200$ $$900$

Year $2$ $$2,000$ $$700$ $$2,700$ $$1,100$ $$2,000$ $$2,100$ $$2,600$ $$1,000$

Year $3$ $$2,800$ $$1,700$ $$2,300$ $$1,800$ $$1,800$ $$2,800$ $$1,100$ $$1,600$

Year $4$ $$2,200$ $$2,200$ $$1,100$ $$500$ $$600$ $$2,100$ $$1,100$ $$3,000$

Year $5$ $$2,000$ $$1,000$ $$3,000$ $$2,300$ $$1,400$ $$1,400$ $$600$ $$1,000$

Year $6$ $$1,400$ $$1,800$ $$1,400$ $$2,600$ $$2,700$ $$1,300$ $$2,900$ $$3,000$