Achild wakes suddenly after sleeping for a couple of hours, is terrified and shows significant autonomic activity, such as a racing heart rate and dilated pupils. when questioned, the child cannot remember what frightened her. it is likely the child has just woken from sleep.
a. stage 1
b. stage 2
c. stage 3

Option c

Explanation:

Stage 3 or night terror which occurs when the transition of the stage of sleep is from third to fourth and is what happened in the child in the given question.

The occurrence of night terror is after ninety minutes (approx) of the sleep of the child and is in transition phase from third to fourth of the Non REM sleep.

Night terrors can result in severe panic state, distress, followed by a sense of helplessness where the child is usually not able to remember the cause of being frightened.

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