What can be a common reason for a low death rate?

Correct answer: Better health facilities

Direct answer: Option C, better health facilities. Health facilities include access to medical care, trained health workers, medicines, diagnosis and treatment. When such facilities improve, many illnesses can be prevented or treated more effectively, so the number of deaths may decline and the death rate may become lower. This is a general relationship, not a claim that health facilities are the only factor. Option A is wrong because inadequate food and disease usually create health risks and can raise mortality rather than lower it. Option B is wrong because out-migration changes the number of residents in an area; it is not a direct reason that the death rate becomes low. Option D is wrong because lower education does not generally improve health conditions. Other factors can influence death rates, but among the given choices, better health facilities provide the clearest explanation. Remember: improved care supports survival; it does not mean deaths become zero.