@novaatebatman, can you please change our reply for option 3?
I checked American sources and found that what is good for grizzly is not good for Black bear and the better strategy is to keep the ground, make some noise and fight if necessary. It's strange but Russian sources has another point of view...
Team "Last minute" (@erikaflynn and @bodyinbeta) choose option 3.
We have:
-a knife
-2 pistols with 15 rounds of ammunition
-water purification tablets
-gas
-fire starter
-plant field guide
-dynamite
-25 grams of silver