The correct answer is B. You might offend someone
Step-by-step explanation:
In almost all communicative situations including group discussions, it is recommended before you talk or participate you think or organize ideas in your mind, this will allow you to organize ideas logically to convey a clear message, and especially to make sure your participation is appropriate and you do not offend other participants. This factor is important because in a group discussion participants can have different points of view; despite this, they should be respectful with others and the main way to do this is by using appropriate language. Thus, you should think before you speak in group discussions because if you do not do this you might offend someone.