The correct option is A Suffocation
Symptoms of diphtheria often appear two to five days after infection. In some cases, you could be a carrier of C. diphtheriae and have only mild symptoms similar to the common cold or no symptoms at all. The most common and visible symptom is a thick, gray coating on your throat and tonsils. Other common symptoms include: difficulty breathing (suffocation), swollen lymph nodes in the neck, chills, fever, a loud-barking cough, bluish skin, a sore throat, drooling, a general feeling of uneasiness or discomfort.