Respuesta :
The best punctuation that makes the most sense is B. Use the hyphens so that you can separate the main purpose of the sentence from the adjective.
Answer:
A nonessential phrase, as the name itself states, is not really that important to the sentence - if that part were deleted, the sentence would still make perfect sense. These phrases are always separated from the rest of the sentence with commas. Therefore, the correct answer is C. Drivers must complete a written test, according to the Department of Transportation, before receiving their driver’s license.
The nonessential phrase here is according to the Department of Transportation.