The implementation of something prepared should initially cause that process to happen. Then, it is possible to avoid from happening it through implementation of a protocol.
Implementation of any protocol does not require it from occurring or to follow from initial period to end of the process.
Thus, the options (a), (d) and (b) are incorrect.
The implementation of something prepared should initially cause that process to happen. Then, it is possible to avoid from happening it through implementation of a protocol.
Therefore, the correct option is – c. cause it to happen.