A bucket full of water is attached to the end of a rope and allowed to swing back and forth as a pendulum from a fixed support. The bucket has a hole in its bottom that allows water to leak out. How does the period of motion change with the loss of water?
(a) The period does not change.
(b) The period continuously decreases.
(c) The period continuously increases.
(d) The period increases to some maximum and then decreases again.