If you live in the northern climes No. 3 is a good chance. If you haven’t stockpiled fuel and live in populated areas spare wood will be gone pretty fast. In fact sticking it out in a populated area if the event lasts more than a few months is a low probability survival event.
That is the harsh truth. Any prepper now living in a high population area will have to have allies. Unless the prepper is living in or has a steel reinforced fortress with no way for mobs to enter AND!!! an air system that cannot be blocked, their fortress and stocks will be easily overwhelmed.
Even a lot of firepower won't help, because mobs will also have guns and will block gun ports and air systems. If nothing else works, the mob will start fires and roast or suffocate the preppers.
The only thing that will work for preppers in high pop. areas is an alliance with other preppers...but it has to be a neighborhood alliance. Even that will be iffy.
The only preppers who can hold out are the ones already living in remote, mountainous areas, and even they will have to have allies.