Financial bootstrapping is minimizing the need for financial capital and finding unique ways of financing new businesses, such as obtaining financial resources from family and friends. If you can only choose one loan from a friend, which loan should you choose based on the perspective of the principle of entrepreneurial finance, explain your reasons, can also be explained by giving calculations? 

A friend lends $ 30,000 for 1 year if you agree to pay back $ 5,000 in interest plus a principal of $ 35,000 at the end of the first year. The second friend only has $ 10,000 to lend and expects a total return of $ 11,500 at the end of the first year. The 3rd friend has $ 40,000 to lend and expects a total return of $ 47,500 by the end of the second year.