Jack and Jill are fiercely competitive siblings, and since they were born exactly a year apart, can compete in most everything. Jill, the younger, always resented her older brother for being just that: older. When they got older, Jack resented Jill's youthful advantage of one year. Imagine that Jack builds himself a high-tech spaceship and races off into space, knowing that he can at least slow down his aging. If he were gone for one year according to Jill, which of the following statements could be or are true? I. There is no possible way for Jack to be the same age as Jill.
II. Jack and Jill are now the same age.
III. Jack is older than Jill.
IV. During the outbound trip Jill believes that Jack's clock is ticking faster than her own.
V. During the outbound trip Jill believes that Jack's clock is ticking slower than her own.
a. II, IV
b. I, III, IV
c. II, V
d. I, IV
e. I, III, V