Answer:
Project B
Step-by-step explanation:
Project A: Investment $800,000; Annual Earnings $90,000. ⇒ return on investment = $90,000 / $800,000 = 11.25%
Project B: Investment $100,000; Annual Earnings $20,000. ⇒ return on investment = $20,000 / $100,000 = 20%
Project C: Investment $300,000; Annual Earnings $25,000. ⇒ return on investment = $25,000 / $300,000 = 8.33%
Project D: Investment $400,000; Annual Earnings $60,000. ⇒ return on investment = $60,000 / $400,000 = 15%
Only the return on investment of project B is higher than 16%, the other projects' ROI is lower than 16%, therefore, they should be rejected.