Need help on below question. I know the answer to the question will be either A(if it has been identified Risk) or C (if has not been identified) .But how to decide in this case.

When a negative risk occurs in a project, a response to it would be called:

1. 
   

   A contingency plan



2. 
   

   Failure planning



3. 
   

   A workaround



4. 
   

   Backup planning