Will give brainliest Question on picture

Plz put the answer choices thx.

That is the correct answer to the question, why is the southern portion of the ring of fire so complex?

Boreal forest another word for this is taiga.but it is a biomes, that stretches across the northern regions of north america, europe, and asia.~ hope this ! (if this is correct may i have brainy? )

The oldest is  found in the  west pacific and north-west atlantic.