If humanity has passed the point where the oil supply is declining, which suggests the most practical response?

Question

Responses

start hoarding oil in underground tanks as a hedge against a future without oil
start hoarding oil in underground tanks as a hedge against a future without oil

reduce dependency on fossil fuels and find alternate sources of energy
reduce dependency on fossil fuels and find alternate sources of energy

increase funding for government agencies like NASA to find other habitable planets
increase funding for government agencies like NASA to find other habitable planets

map out the oil-rich regions of the world, then systematically invade and occupy them

Answer 1

reduce dependency on fossil fuels and find alternate sources of energy