A group of caregivers of toddlers are discussing the form of discipline in which the toddler is placed in a "time-out" chair. Which statement made by these caregivers is most appropriate related to this form of discipline?

a) "We use the time-out chair when our son gets tired but doesn't want to take a nap."b) "When my son starts getting frustrated and aggressive, I remind him that if he throws a fit he will have to go to time out."c) "Our time-out chair is in the master bedroom so she can't see anyone else in the family."d) "She is two years old now and I put her in time out for five to 10 minutes when she misbehaves."