system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which of the following is not true of Diplococcus pneumoniae -
assistant
The correct answer is  Ans. is 'b' i.e., Optochin resistance . Pneumococcus is optochin senstive (not resistant). The senstivity of pneumococci to optochin is useful in differentiating them from streptococci.