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. select the best answer from the choices provided. a b c d

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

Explanation

Most communicable diseases are either bacterial or viral and infect the respiratory tract because communicable diseases are those that are transmissible from infected person to healthy individual and are usually bacteria or virus that mostly enters the body through air,  breathing, blood, and bodily fluids. It is the infection that invasion of living organism tissues by disease-causing factors, their reproduction, and the resistance of master tissues to the infectious causes and the toxins the product

out of the choices i'd say d the ability to set goals, mainly because to desire to continue you need motivation but it isn't motivation in that part, but setting goals means you have an endgame and you want to reach it which sums up motivation.