Final answer:
Laxative D is the correct answer for safe long-term use, but patients should always consult a healthcare professional before starting any long-term medication.
Step-by-step explanation:
The subject of the question relates to which laxative is safe for long-term use. Since the question provides choices (Laxative A, B, C, and D) but doesn't specify the nature of these laxatives, we must refer to Chapter 24 to determine the correct answer. Chapter 24 guides us to the safe option for long-term use. According to the information given, the correct answer is Laxative D. It is crucial for patients to consult with a healthcare professional for personalized advice, as long-term use of laxatives can lead to dependence and might affect the balance of electrolytes in the body.