Are designed to stop an undesirable event from occurring, whereas controls are designed to identify an undesirable event that has already occurred.

Complete/Correct Question:

controls are designed to stop an undesirable event from occurring, whereas controls are designed to identify an undesirable event that has already occurred.

a. Preventive; detective

b. Internal; external

c. Risk; discovery

d. Operating; review

a, Preventive, detective

Explanation:

Preventive controls, just as the name implies, are control that stop an event from occurring. An example is taking vaccines. It is a preventive measure of ensuring that some certain illnesses and/or diseases do not happen at that time or in future.

Also, detective controls are controls that are put in place to identify unpleasant events that have occurred. An example is the engine oil indicator on the dashboard of a vehicle showing that the vehicle engine oil has become empty or greatly depleted.

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if you use only 25 for your entertainment and only 200 for the groceries that you really need and take out the 50 per month for the computer then that should be enough