CO raises, SB raises, what does BB need to push

[betgo]

$100 MTT, about 30% of field left. No strong reads. What do I need to play in the BB?

Poker Stars
No Limit Holdem Tournament
Blinds: t200/t400
(Ante: t25)
9 players
Converter

Stack sizes:
UTG: t3530
UTG+1: t6760
MP1: t6685
MP2: t15565
MP3: t12210
CO: t9680
Button: t8280
SB: t10166
Hero: t7345

Pre-flop: (9 players) Hero is BB with xxx
5 folds, <font color="#cc0000">CO raises to t1200</font>, Button folds, <font color="#cc0000">SB raises to t4000</font>, <font color="#cc0000">Hero ???