According to the American Medical _______ to a resident's training during their internship.
Which choice completes the text so that it conforms to the conventions of Standard English?
Association hands-on experience is vital
Association, hands-on experience is vital
Association, hands-on experience is vital,
Association hands-on experience is vital,
Correct Answer: B
Choice B is the best answer. The introductory phrase "According to the American Medical Association" requires a comma to separate it from the main clause "hands-on experience is vital."
Choice A is incorrect because it creates a run-on between the introductory phrase and the subject. Choice C is incorrect because the comma after "vital" separates the subject complement from the rest of the sentence. Choice D is incorrect because it misses the comma after the introductory phrase.