a)+Take+the+gun+and+shoot+yourself+in+the+head.+By+doing+that+you+will+attract+more+zombies+to+you+and+you+wife+and+children+can+continue+the+journey.

You take up the gun and then you make sure that it's loaded. You put it up against your head and pull trigger.

=You are now dead!= =But you may try another path!=