* SIDE NOTE! The course I read is investments and financing, PLEASE ANSWER WITH EXPLANATIONS THANKS! *

Evaluate the following three investment projects via the Internal Interest Rate Method (IRR):

Option 1: Basic investment in period 0 is SEK 300,000 with a net cash flow in period 1 on SEK 370,000.

Option 2: Basic investment in period 0 is SEK 120,000 with a net cash flow in period 1 on SEK 160,000.

Option 3: Basic investment in period 0 is SEK 20,000 with a net cash flow in period 1 on SEK 26,000.

A risk-adjusted required return on investments is estimated at 18%. Comment on your solution.