The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
The three civil service jobs that allow the president to do his job better could be the following. Administrative Assistant, Law Enforcement Officer, and Intelligence Analyst.
These are key civil service jobs that are key for the President of the United States and the members of his Cabinet. They are important because these can produce a series of measures and information that allow the President to make decisions. And if there is something the President must do is to make difficult decisions in critical times, that is why he needs the support of bright and loyal civil service workers.
