Wagering question regarding "Decision"

Don't want to lose because of a stipulation so before I bet, my book has such bets as Pac by decision and pac by unanimous decision.  If I take decision, and it's unanimous..do I still win? I don't believe so but given that they have all these other bets offered I'm not so sure.  Sorry for the stupid question in advance, thanks guys.

any help?

They really offer this? I'm guessing if they have both up, the you wouldn't win. It doesnt even make sense as I type.... 

yeah dont wanna get screwed here check it out:

sorry it has: Pac by decision: +160

If you take Pac by decision, you win with any decision, hence the lower price. If you take unanimous or split, you lose to the other form of decision.