A communicable disease is

The correct option is A Diphtheria

• The diseases which are transmitted from one person to another or from reservoir to susceptible person are called communicable diseases.

• Diphtheria is an infection caused by the bacterium Corynebacterium diphtheria. Symptoms include a sore throat, fever, barking cough, a grey or white patches develop in the throat. Diphtheria is usually spread between people by direct contact or through the air. It may also be spread by contaminated objects.

• Diphtheria is a communicable disease because it can be transmitted from one person to another through droplet infection.

• So, the called as 'Diptheria'.