Concept: The demonstration method is a teacher-led approach where the teacher shows a skill or experiment while students watch. Its main drawback is that students do not get hands-on practice. Explanation: In this method, the teacher performs the experiment or task in front of the class. Students only observe and listen to the explanation. They do not handle apparatus or repeat the procedure themselves. This limits their active participation and practical learning. Option A correctly states this demerit. Option B (time-consuming) is sometimes true but not the main demerit. Option C is an advantage, not a demerit. Option D is actually a merit of the demonstration method, not a demerit. Answer: A. Pupil do not get chance to perform experiment