Meningitis can be caused by a number of microbes, and the causative organism is often identified by microscopic observation of the cerebrospinal fluid. Identify the mismatch in the following list of organisms and the description of the microscopic observation. A. Streptococcus pneumoniae; gram-positive flattened coccus
B. Cryptococcus neoformans; fungal cells with a thick capsule
C. Listeria monocytogenes; gram-negative coccobacillus with flagella
D. Enterovirus; no bacteria appear to be present in CSF
E. Neisseria meningitidis; gram-negative diplococcus