Answer:
B) $5,000
Explanation:
Under Section 1014 (a) the basis of any property acquired by a decedent (Lynn) through a gift within 1 year of death and passed back to the donor (Edwin) due to the decedent's death, will be adjusted to the basis immediately prior to the death.
In other words, since Lynn died within 1 year of receiving Edwin's gift, Edwin's basis will be the same as Lynn's basis.