Both Yoni and Sergei have different cultural backgrounds. For example, Sergei doesn't like people who knock on his door because it reminds him of the time when he was still in Russia. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
i would say PROCESS... hope this helps :)
The following are reasons that visual aids are useful in speech delivery:
>Visual aids add interest to a speech.
>Visual aids demonstrate something that is related to the speech.
>Visual aids expand understanding.
Therefore, the answer is option B. The presence of visual aids does not allow the speaker to take a rest from talking.