How Does the Preliminary Search for Oil Reserves Cause Environmental

How does the preliminary search for oil reserves cause environmental degradation?

A) Drilling to try to find oil may release oil from reserves that then affects ecosystems.
B) Searching for oil can often cause spills that negatively affect ecosystems.
C) When searching for oil,companies often have to clear-cut areas of forest.
D) Seismic waves sent into the ground by companies searching for reserves can disorient marine and other wildlife.