A 27 year-old HIV patient comes into your office complaining of malaise, a terrible cough with productive purulent sputum, feelings of "suffocation", and tightness in their chest. You ask the patient to give you a sputum sample which, when cultured, grows on blood agar, is alpha-hemolytic, is susceptible to Optochin and is bile soluble. What is the diagnosis and what pathogen is most likely involved?
A. Pneumonia; Streptococcus pyogenes
B. Pneumonia; Streptococcus pneumoniae
C. Pneumonia; Haemophilus influenzae
D. Tuberculosis; Mycobacterium tuberculosis
B. Pneumonia; Streptococcus pneumoniae (commonly seen in young, HIV patients)
(this multiple choice question has been scrambled)