The correct answer is D. Ignoring those who do not participate
Step-by-step explanation:
Meetings and discussions are communicative situations in which people gather to discuss a topic or share different points of view, because of this, during any meeting and discussion it is important everyone can participate and the communication can flow effectively. Due to this, there are basic ground rules for this communicative situation such as establishing times to guarantee everyone can participate or assigning different roles for tasks such as controlling time or recording important points.
However, "ignoring those who do not participate" should never be one ground rule as the purpose of discussion and meetings is to know everyone's opinions and thus that do not participate should be encouraged or aks to participate not just ignored.