Answer:
It is D because communicable diseases, also known as infectious diseases or transmissible diseases, are illnesses that result from the infection, presence and growth of pathogenic (capable of causing disease) biologic agents in an individual human or other animal host.
SO with the procces of elemination you can see that you can't contract cancer because that is something that can be inherited. Chronic Respiratory diesase can be inherited or developed throughout the years same as diabetes. Hence the answer being D