HELP FAST PLZ

Which of the following could indicate that climate change is occurring rapidly in Nunavut Territory?

a) Increased mineral mining
b) Increased military presence
c) The melting of permafrost
d) Earthquakes

My answer is b tell me if I'm RIGHT or WRONG PLZ

NOOOO, there is no military presence as such in our arctic.

It is clearly the melting of the permafrost, resulting in an alarming and dangerous escape of methane into the atmosphere.