Read the following lines from the text:

a squat, brawny figure in shapeless space-jacket came to kenniston's side. it was holk or, the jovian who had been waiting for him … in the shifting moonlight his battered green face expressed ignorant perplexity as he stared across the busy spaceport.

what can be inferred about holk or from these lines?

he can walk quickly.
he controls time.
he is not human.
he is an energetic being.