Answer: han hablado
Explanation:
I chose this and got the question correct.
I went on g0ogle translator and that is what it said.
More detailed explanation:
The question says to use the proper word for the bold word, which is 'Hablan'.
The travelers have spoken with the tour guides and are changing plans.
= correct translation
Also, it's C because they are speaking in the past tense, as shown in italics.
And the past tense and 'multiple people speaking' of the word 'hablan' is C/han hablando.
