(n): Option 6 is when an individual procures a sample of the zombie virus then introduces it to a population center, effectively causing the zombie apocalypse. Whenever an individual is faced with a difficult decision (such as which college they should enroll in) and is unable to choose any of their options for the situation, they may instead choose Option 6. Since the zombie apocalypse has begun, they will no longer have to make a choice.
"Harvard or Yale?...Harvard or Yale?...Eh, fuck it. Time for Option 6!"