I think the answer to this question is either a, b or e (let me know if I'm wrong)
I believe this demonstrate learning through non-verbal sensory (seeing) and learning through imitation.
This type of learning is conducted by relying on the vision to obtain information on a certain knowledge, and the act of repeating what we see in order to implement it.<span />
I believe the answer is: panel discussion.
In a panel discussion,we put several speakers who held a certain level of credibility regarding the topic and give the audiences the chance to publicly debate their questions or opinion regarding the topic. This type of discussion is mostly used to delve in politics, new/upcoming scientific development, or the problems that involve general well being of the community as a whole.