Why is an environmental contingency plan important? a.

An environmental contingency plan is important to assess the effort required to make environmental changes.

b.

The effects of environmental changes cannot be determined with certainty, so contingency plans are necessary to effectively deal with unexpected changes.

c.

New environmental conditions cannot be developed without the existence of an environmental contingency plan.

d.

All of the above

is this (A) (B) (C) (D) like can someone please say