OG详解-OG9 文法 Q14

Choice C is the best answer. The sentence explains an advantage of the “Women and the Vote” format, noting that the format appealed to audiences because it allowed them to control the experience. 
Choice A is incorrect. The sentence describes a digital drawing on the “Women and the Vote” website; it doesn’t explain an advantage of the play’s format. Choice B is incorrect. The sentence explains how audiences interacted with the  “Women and the Vote” website; it doesn’t explain an advantage of the play’s format. Choice D is incorrect. While the sentence mentions that “Women and the Vote” had an interactive format, it doesn’t explain what advantage this format might have.