How can the sentence "I think you should apply for the job" be rewritten using "to" and "suggest"?

The correct transformation of the sentence "I think you should apply for the job" using "to" and "suggest" is found in the option that states, "I suggest you apply for the job."

This option effectively communicates the speaker's recommendation regarding the job application in a straightforward way. The phrase "I suggest you apply" clearly conveys the action being proposed, maintaining the original meaning of the sentence. Importantly, when using "suggest" in this context, it is grammatically correct to follow it with the base form of the verb "apply" without the preposition "to." This construction is a common usage in English that directly translates the intent of the original statement to a suggestion.

The other options do not offer the appropriate or grammatically correct forms required by the prompt. Some introduce unnecessary complexity or incorrect structures. For example, using "suggest you to apply" incorrectly combines the verb "suggest" with the preposition "to," which is not standard usage. In summary, the selected choice provides a clear and grammatically correct transformation of the original sentence.