All statements are true about proteus mirabilis and Proteus vulgaris except: Oxidase negative & liquefies gelatin.. Positive to INDOLE test

All statements are true about proteus mirabilis and Proteus vulgaris except: Oxidase negative & liquefies gelatin:
a- Exhibits swarming on BAP and Mc Conkey's agar
b- Urease positive
c- KCN and N2S positive
d- Positive to INDOLE test***