The correct option is A.
An infection disease is a type of disease which a person can acquire as a result of contact with the person who has the disease or as a result of contact with body fluids from that person. Infectious disease can be spread through increased virulence, increased incidence and different portals of entry. A decreased transmissibility reduces the probability of an infectious organism been transmitted.
i would say b! if im wrong im sorry...
Some enzymes which have been known longer have older names that don't end in "ase." For example: pepsin<span>, </span>trypsin<span>, and chrymotrypsin which are all enzymes localized in the digestive tract.</span>