The correct answer is D. She should remind him of the rules for discussion and ask him to provide supporting information.
Step-by-step explanation:
In discussions, one of the main common purposes is to share opinions and perspectives about a topic or situation to make a decision. In this and in almost any kind of the discussion a position or point of view needs to be supported with reliable evidence rather than just based on personal opinions.
This rule has been followed by Angel and Lola who present their ideas based on the budget and logical reasons; however, in the case of Donnie he does not present any evidence but his intervention is mainly based on personal judgments and because of this, the moderator who is the person that guides the discussion should ask him to give support for his position and probably reminds him or the rules for discussion not only because he did not provide support but also because his use of language was rude and attack other ideas.