Which of the following estate planning documents(will, codicil, letter of last instructions, living will) do the following individuals/ families need? Explain your rationale.

A. Kayla, a recent college graduate with only a few personal assets, all jointly owned with her parents.

B. Justin and Edee, a couple in their 30s with 2 young children. They already have a will that they made when they were first married 10 years ago- before they had their second child.

C. Mac, a widowed man living with a close personal friend to whom he would like to leave his personal assets upon death.