NEET Biology question

Many diseases can be diagnosed by observing the symptoms in the patient. Which group of symptoms are indicative of pneumonia?

• (A)Difficulty in respiration, fever, chills, cough, headacheCorrect
• (B)Constipation, abdominal pain, cramps, blood clots
• (C)Nasal congestion and discharge, cough, sore throat, headache
• (D)High fever, weakness, stomach pain, loss of appetite and constipation