Bubble play - take me to school please...

[Seadood228]

I've recently moved up to the 30s and have been second guessing some of my moves. I think this is pretty much a no brainer decision but would like input from some of the pros.

Who makes this call and who folds?

Background... I've been nursing a middling stack throughout the tourney. All four players have been playing very aggro, and the big stack has definitely been doing his job. Here are the stack sizes.

MP - 865
BT - 3800
SB - 2060
BB (me) - 1275

Blinds are 200/400. I have 875 after posting. Folded to the BT who bets exactly the amount of chips I have left. I have KJo..

Thanks in advance