The correct answer is B. Measles
Step-by-step explanation:
In medicine and related fields, a communicable disease is one that can be transmitted or spread. In the case of airborne diseases, these are transmitted from one person to another through germs or pathogens that are in the air, and due to this, the sick person must be placed in respiratory isolation.
From the options given, the one that would require respiratory isolation is measles because this is highly contagious, and it can be transmitted through air, which means the virus that causes measles remains in the air when the person sneezes, coughs or breathes.
On the other hand, mumps is transmitted through droplets when the person coughs or sneezes, and therefore requires droplet precautions; while impetigo is transmitted by direct contact and cholera is transmitted through the fecal-oral route; and due to this, these diseases require contact precautions.