Answer:
c. Microorganisms
Explanation:
Microorganism are the microscopic organisms present in environment such as bacteria, fungi and virus.
Strep throat is a infection of throat caused by a "Group A Streptococcus bacterium". The diseases of strep throat causes large red patches on the skin. some of the symptoms of strep throat include fevers, chills and blisters.
Athlete's foot is a feet infection caused by different fungi such as trichophyton, microsporum and epidermophyton. Symptoms of Athlete's foot include scaling, itching, redness and cracking.
Hence, the correct option is c.
