Neisseria menigitidis is characterized asa. having a polysaccharide capsule and fimbriaeb. a gram-negative diplococcusc. a gram-positive coccobacillusd. a gram- negative diplococcus with a polysaccharide capsule and fimbriaee. being rapidly motile

The correct option is: d. a Gram- negative diplococcus with a polysaccharide capsule and fimbriaee.

Explanation:

Neisseria meningitidis is a Gram-negative bacterium, responsible for causing meningitis and other meningococcal diseases. Due to the round shape of the bacterium, this bacteria is called coccus. This bacterium also has a tendency to form pairs and is thus referred to as diplococcus.

Some of the virulence factors of this bacteria include the fimbriae and the polysaccharide capsule.