Which of the Following Has Been Used to Help Children

Multiple Choice

Which of the following has been used to help children with problems related to bedwetting?

A) the development of a pad that beeps when it is touched by moisture
B) the development of an alarm clock which automatically wakes a child up when it senses a full bladder
C) the development of a stuffed animal that "giggles" when a child's brain-wave pattern indicates pending urination
D) the development of a diaper that produces a foul odor when it is moistened with urine