This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
Pneumococcus producing mucoid colonies most often is type 
Select and explain. 
A. I, B. II, C. III, D. IV
C: III
Answer: C: III 
Explanation: Pneumococci on blood agar, after incubation for 18 hours, the colonies are small, dome-shaped with an area of greenish discoloration ( alpha hemolysis). some strains streptococcus pneumoniae type III and VII form large mucoid colonies due to the abundance of capsular material. Reference: Textbook of Microbiology; Anathanarayan and panicker's; 10th edition; Page no: 224