Answer: The answer is E. None of these.
Explanation: From the scenario given above, we can see that Frank was a hypochondriac meaning that he always worried about his health, and in addition to that, he was also compulsive.
When Frank was in the hospital, his hypochondriacal nature must have prompted him to give the lottery ticket to Bubbles. This is because he must have thought he was going to die.
A gift that is given in this situation is called a Gift Causa Mortis. The condition for this gift to be irrevocable is if the donor dies. However, if the donor survives, then the right to keep the gift will only be passed to the receiver if the donor permits it.
Therefore, the gift to Bubbles in the scenario given above is revocable based on whether Frank dies or not, and since Frank is alive, the lottery ticket is still validly his.
Therefore the answer is E.