If some words are coded from artificial language, like

"Pono dakb" means LIVE RIGHTY

"dakb Rnato" means LIVE PROFITABLY

"Htbl dakb" means JUST LIVE

Which code could mean "LIVE URGENTLY"?

dakb Wakbo

We have,

"Pono dakb" means LIVE RIGHTY

"dakb Rnato" means LIVE PROFITABLY

In both of these  statements LIVE word present.

So, the code for LIVE word is = dakb

Now go with the options,

Only one option has dakb so the answer will be dakb Wakbo.