Determine the IRR of the following projects.

A. An initial outlay of $9,000 resulting in a single free cash flow of $16,688 after 7 years.

B. An initial outlay of $9,000 resulting in a single free cash flow of $52,203 after 13 years.

C. An initial outlay of $9,000 resulting in a single free cash flow of $113,817 after 18 years.

D. An initial outlay of $9,000 resulting in a single free cash flow of $13,892 after 3 years.