Neisseria gonorrhoeae

What key characteristic distinguishes Neisseria gonorrhoeae from Neisseria meningitidis?

1: Neisseria gonorrhoeae is gram-positive.
2: Neisseria gonorrhoeae can oxidize maltose.
3: Neisseria gonorrhoeae appears as diplococci.
4: Neisseria gonorrhoeae is not encapsulated.