Which option uses "recommend" to rewrite "They advised him to take the job" correctly?

The correct answer effectively captures the essence of the original sentence while appropriately using "recommend." In this context, "They recommended that he take the job" is grammatically correct because it uses the subjunctive mood, which is often employed in formal recommendations or suggestions, especially following verbs like "recommend."

Using "recommend" in this way emphasizes the action of suggesting the job as a good option for him to consider, aligning closely with the original intent of advising. It can be understood that this form conveys a strong endorsement of the action proposed.

Other options either misuse the structure of recommendation or do not convey the recommendation in a natural or correct grammatical form. For example, suggesting someone "to take" (as in the first option) doesn't follow standard English conventions. Similarly, stating "him taking" (in the second option) improperly employs the gerund form when a subjunctive is required. Lastly, advising him "that he should" (in the fourth option) does not utilize "recommend" and instead retains a different verb, which changes the focus slightly. Thus, the third option stands out as the most precise and appropriate rewrite of the original sentence.