The July 6, 2013, Railway Disaster in Lac-Mégantic, Quebec Highlighted

The July 6, 2013, railway disaster in Lac-Mégantic, Quebec highlighted the danger that businesses can face when they are located close to rail lines, especially in the event of a derailment. One hundred and fifteen businesses were severely affected when an unattended train carrying crude oil derailed and crashed in the downtown area. Thirty buildings were completely destroyed, much of the downtown infrastructure (roads, utilities, and so on) was destroyed or severely damaged, and over 40 people died with many others seriously injured. While a runaway train may seem to be a rare occurrence, Canadian statistics indicate that, based on data from 2007-2011, on average there are 58 derailments annually, although not all of these involve dangerous goods.
-Some train derailments create chemical spills, such as oil leaks. What is the appropriate response in such cases?

A) clean up the spill and report the incident to the Ministry of Labour
B) warn others, isolate the spill, assist the injured, and notify authorities
C) try to determine what the spilled material is and whether it can be safely handled
D) try to identify what led to the accident and how to prevent another accident in future