NL rules question

[Hotchile]

I need clarification on this. I hope a rules pundit can help.

NL holdem tournament. Blinds are 1000-2000. At the turn, player A goes allin for $500. What are the options for player B assuming there are 3 players in the pot.

Can he:
A) Raise to $1000
B) Complete to $2000
C) Raise to $2500

The question is, ultimately, does the player need to adhere to the limit of the game being played at the time.

HC

[Roman]

A) No
B) Yes
C) No

[bmxreed36]

At first glance, I thought no, yes, no, thinking it was pre-flop, then I reread and saw that the question is about the turn. Wouldn't that be no, no, yes? Maybe I'm wrong, but when A goes all-in for 500 on the turn, player B can just call it but if he raises it has to be at least the size of the big blind, another 2000.

[Mike Gallo]

[ QUOTE ]
A) No
B) Yes
C) No

[/ QUOTE ]

[M.B.E.]

A) clearly no
B) not sure, probably no
C) clearly yes

Roman's answer is wrong for NL but would be correct for limit.