Which of the Following Is NOT One of the Ways

Which of the following is NOT one of the ways to assess whether a toddler is ready for toilet training?

A) If the toddler is capable of informing when the diaper is wet.
B) If the toddler is staying dryer for longer periods of time.
C) If the toddler is expressing discomfort with wet diapers.
D) If the toddler is showing an interest in using the toilet.