18. Sally Anne Williams died on January 1, 2007. All of her property was conveyed to several relatives on April 1,2007. For federal estate tax purposes, the executor chose the alternate valuation date. On what date was the value of the property determined?

a. January 1, 2007.

b. April 1,2007.

c. July 1,2007.

d. December 31, 2007.