Answer:
Option: C. Sources from that period show that residents did not take the threat of eruption seriously and stayed in the city.
Step-by-step explanation:
The cities Pompeii and Herculaneum were part of the Roman Empire until the Volcano eruption of Mt. Vesuvius in 79 AD. The eruption lasted 18 hours which buried Pompeii and Herculaneum with ash, volcano rocks, and gases which killing thousands of people. The volcanic eruption of Vesuvius caught the local population utterly unprepared even though they got warnings of frequent earthquakes. They did not take the alarm seriously and continued in getting on with their busy lives. The ash and gases were not the primary causes of death in the region but, was the heat that killed most people because of extreme thermal shock that led to the pyroclastic surge.