This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
A young lady complains of sore throat for 3 days along with fever and headache. On examination, she was severely dehydrated, her BP was found to be 90/ 50 mm Hg and on the distal aspect of the cuff, small red spots were noted. What could be the most probable etiological agent responsible for causing these symptoms - 
Select and explain. 
A. Brucella abortus, B. Brucella suis, C. Neisseria meningitidis, D. Staphylococcus aureus
C: Neisseria meningitidis
Answer: C: Neisseria meningitidis 
Explanation: None