Correct option is D
To help students understand the condition of the public health system in the country comprehensively, a combination of activities is most suitable.
(A) Collecting data about public and private health centers and comparing it would provide students with factual information and analytical skills.
(B) Having a discussion on health care facilities as the primary duty of the Government would help students understand the government's role and responsibilities.
(C) Interviewing people and asking them to share their experiences of availing public health care would offer real-life insights and perspectives.
By combining these activities (A, B, and C), students can gain a more holistic understanding of the public health system.