<prompt> Which of the following is not true about Diplococcus pneumoniaeBile solubilityOptochin resistanceCauses MeningitisPossess Capsule  <response>: Streptococcus pneumoniae is optochin sensitive. Optochin sensitivity: the sensitivity of Streptococcus pneumoniae to optochin is useful in differentiating it from other streptococci. When a disc impregnated with optochin is applied on a plate of blood agar inoculated with Streptococcus pneumoniae, a wide zone of inhibition appears on incubation. Reference: Textbook of Microbiology; Anathanarayan and panickers; 10th edition; Page no: 225 