What type of diseases are referred to as non-infectious?

Non-infectious diseases are defined as those conditions that are not caused by pathogens such as bacteria, viruses, or other infectious agents. The correct choice highlights that these diseases arise from various factors including genetic predispositions, environmental influences, lifestyle choices, or other non-germ related factors.

For instance, diseases such as diabetes, cardiovascular diseases, and certain types of cancer can occur regardless of infectious agents. They often result from complex interactions between genetics and environmental factors, and they cannot be transmitted from person to person, distinguishing them from infectious diseases. Additionally, while hereditary diseases can be a subset of non-infectious diseases, not all non-infectious diseases are hereditary, as some can be linked to lifestyle choices or other factors.