John and Peter started their retirement savings at age 21. Since John is a very conservative person, he chose a very safe mutual fund. However, Peter chose an aggressive mutual fund. They have saved monthly the same amount for 40 years. John earned 10% annual return from his mutual fund but Peter earned 5% annual return from his mutual fund. Choose which one is correct about their account balance when they retired.

A) Johns retirement account balance is exactly 50% of Peters balance

b) Johns retirement account balance is more than 50% of Peters balance

c) Johns retirement account balance is a little less than 50% of Peters balance

d) Johns retirement account balance is much less than 50% of Peters balance