Final answer:
The correct answer to the question is that a plaster of Paris cast typically dries in 24 hours, not in the shorter time frames such as 5 or 30 minutes, or even 1 hour.
Step-by-step explanation:
The subject of this question is Health. When it comes to how quickly a plaster of Paris cast dries, it's not as rapid as the other options suggest. A plaster cast does not dry in 5 minutes, 30 minutes, or even 1 hour. The correct answer for the question 'A patient has a plaster of Paris cast. The cast dries in:' is d) 24 hours. It's important for patients with a new cast to avoid getting it wet and to keep it aired out to allow it to dry properly without causing skin complications or affecting the stability of the cast.