Answer: B) The French, English, and Italians.
Explanation: parallelism is a literary device that consists in the repetition of the grammatical structure of different words or phrases in a sentence or paragraph, in order to emphasize an idea or to create an impact in the audience. To make the given sentence parallel, we need to use the article "the" in all the nationalities or just at the beginning, so the correct answer is option B: The French, English, and Italians all play soccer at the national level.