Which choice most logically completes the text?

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There is a growing belief that teaching medical students about art alongside standard science and clinical coursework helps them become more observant, develop greater patient empathy, and strengthen their communication skills. But some medical program educators are skeptical, questioning if arts and humanities experiences can be clearly shown to have any worthwhile advantages for their students. Research into the effectiveness of arts programs for medical students by Neha Mukunda and her colleagues found that evidence is largely anecdotal and based on studies that were short in duration, limited to single institutions, or restricted to small numbers of students. To strengthen the evidence base in support of incorporating humanities into the coursework for medical students, then, ______

researchers must prove that scientific training alone is insufficient for developing clinical skills.

larger-scale, multi-institutional research studies tracking outcomes for medical students over longer periods are needed.

medical schools should highlight more student testimonials about how arts education benefits their clinical abilities.

institutions may need to provide medical students with exposure to larger numbers of artworks than have been used in previous studies.