Correct Answer - Option 1 : Only I
The logic follows here is:
As the complaint is already received by (CBI) for one of his officers.
One complaint is enough for wrongdoings like taking a bribe.
The course of action I → This should be confirmed by catching the guilty red-handed and then strict action taken against him.
So, the only course I follow.
The course of action II → As the complaint is already received, so waiting for more complaints is not a good course of action for such a prestigious institution. So, the course of action II doesn't follow.
Hence, the correct answer is "the only course I follow".
Some rules to solve Statements and Course of action questions must be kept in mind while solving it.
Rule 1. Have an unbiased and neutral mind frame. Individual perception must not be used to judge the course of action to be taken.
Rule 2. The first step should be to identify the root cause of the problem. Once the problem is solved, a logical mindset should be employed to figure out the course of action.
Rule 3. There must be no extremity involved in the course of action.
Rule 4. A course of action must be able to solve, reduce, or minimize the problem given in the situation.
Rule 5. The course of action can be said to solve/reduce the problem when it is an established fact, when it is logically possible and when it is known from experience.