Question

which statement best describes common communicable diseases? a. most communicable diseases are either bacterial or viral and infect the respiratory tract. b. all communicable diseases are viruses that cause pneumonia. c. most communicable disease are bacteria and viruses that infect the intestinal tract. d. all communicable diseases are bacteria that grow in the respiratory tract. please select the best answer from the choices provided. ∘ a ∘ c

Explanation:

• Option B: "All communicable diseases are viruses that cause pneumonia" is wrong. Communicable diseases can be bacterial, fungal, etc., and not all cause pneumonia.
• Option C: "Most communicable disease are bacteria and viruses that infect the intestinal tract" is incorrect. Many common communicable diseases (like cold, flu) infect the respiratory tract, not just intestinal.
• Option D: "All communicable diseases are bacteria that grow in the respiratory tract" is wrong. Communicable diseases can be viral, fungal, etc., and not all are in the respiratory tract.
• Option A: Most common communicable diseases (like cold, flu, tuberculosis) are bacterial or viral and often infect the respiratory tract, which matches the description.

Answer:

A. Most communicable diseases are either bacterial or viral and infect the respiratory tract.