Answer:
B. advice givers
Explanation:
they have ability to stimulate interaction without bias, Skill to create and maintain a safe environment for all to be engaged in the discussion.
I didn't quite understand what do you mean but if you mean what items uses triangle, some examples are: ladder, folding chair and everything that be fold that are supports
Brush your teeth day and night, floss and Mouthwash
For the first question the answer is D and for the second question the answer should be B, hope this helps!