I am having trouble figuring out the question in the attached screenshot.

Help with this is much appreciated.

Which of the following investments has the highest return? 1. Investment One: 12% p.a. compounding continuously 2. Investment Two: 13.00% p.a. compounding semi-annually 3. Investment Three: 13.50% p.a. compounding annually 4. Investment Four: 12.75% p.a. compounding monthly Select one: O a. The highest return is from Investment Two since it returns 13.42% O b. The highest return is from Investment One since it is compounded continuously O c. The highest return is from Investment Four because the effective return is the highest O d. The highest return is from Investment Three because it has the highest rate of 13.5% of all four investments