As the lead for a 6-year project, you need to purchase a piece of equipment to be used in manufacturing for the duration of the project. Company A's product costs $5,000 and lasts for 2 years, yielding an estimate annual benefit of $3,000. Company B's product costs $7,000 and lasts for 3 years, with an estimate annual benefit of $4,000. Which company should you purchase the piece of equipment from, given interest rate of 10%