The circum-pacific zone of activity, from the western americas (both north and south) to east asia, is particularly active and is often referred to as the
a) pacific rim of fire.
b) subduction zone.
c) massive fault line.
d) transform zone.
e) atlantic instability area

A) Pacific Rim of Fire.

Explanation:

The ring of fie is also known the pacific ring f fire and this zone is a major of basin in the pacific and here the major earthquake and the major volcanic eruption takes place and this an active ring or zone of subduction as the pacific plate is getting subdued by the north American plate and this plate is heavy oceanic plate.   The chain of volcanoes arc covers an area of 40,000 km square.