You are a venture capitalist evaluating two tech startups, Startup X and Startup Y, for potential investment. Startup X is in the artificial intelligence (AI) sector, while Startup Y is in the renewable energy sector.

Requirements:

1. Startup X generated a revenue of $10 million with a net income of $2 million in its first year of operation. Startup Y had a revenue of $8 million and a net income of $1.5 million in the same period.
2. Compare the return on investment (ROI) of both startups considering their initial funding of $5 million each.
3. Discuss which startup appears to offer a better return on investment and the factors influencing your decision.