The Threat of Volcanic Disaster from Volcanoes in the Pacific

The threat of volcanic disaster from volcanoes in the Pacific Cascades is less than for Mount Vesuvius because ____.

A) more accurate prediction and monitoring stations are in place ​
B) proper land-use planning has designated the areas around them as national parks
C) the population of the Pacific Northwest is better educated than the population of the Italian coast
D) local authorities have always responded proactively to volcano warnings
E) local tax codes have high penalties for building on sites of earlier volcanic damage