Answer:
c) Baffled by the idea of discarding perfectly good soap, Kayongon asked the hotel for an explanation.
Step-by-step explanation:
In the given two sentences from the article "The Global Soap Project", sentence 15 is an independent clause that provides a basis or background of the next sentence, sentence 16.
In rewriting the two sentences, we can use a comma to separate the two sentences, but also making them into one sentence instead of two separate sentences. Sentence 15 will introduce or give information for the next sentence.
Moreover, sentence 15 is a participial phrase, beginning with the past participle form of the verb "baffle". This makes the sentence act as an adjective, thus, the need for the comma in between.
Thus, the correct answer will be option c.