Explain whether your answers to problem 1 change if Tammy's will had instead included the following devise to Derek: 

a. "I devise the value of 1,000 shares of ABC Corporation common stock, as of the date of my death, to Derek." 

b. "I devise 1,000 shares of ABC Corporation common stock to Derek." 

c. "I devise all the shares of ABC Corporation common stock that I own at my death to Derek."