The most common causative organism for lobar pneumonia is :
Answer is C (Stretptococcus pneumonia): 'Streptococcus pneumonia or pneumococcus is the most common cause of community acquired acute pneumonia -Robbins 7th/748 Lobar pneumonia refers to an acute bacterial infection that results in consolidation of a large poion of a lobe or an entire lobe. Streptococcus pneumonia produces a picture of lobar pneumonia.
Staphylococcus aureus
Streptococcus pyogenes
Streptococcus pheumoniae
Haemophilus influenzae