At age 99, Betty wrote a letter to Jim about her dog Rufus. The letter said, "Dear Jim, I need Rufus's company for now, but come get him when I die. " Three months later, Betty died, leaving all of her property to Cassie through her will. Cassie refused to let Jim have Rufus. Which of the following arguments should Jim's attorney make?
a. Betty promised Jim that she would give Rufus to him when she died.
b. Actual delivery was practicable.
c. Rufus was symbolically delivered.
d. Betty did not know she was about to die when she wrote the letter to Jim, and so didn't know she should alter her will immediately.