The correct answer for this question is this one:
"The type of channel do Speaker 1 and Speaker 2 use in their communication is that they are directly receive the content of the message via person-to-person, without any device like telephone, sms, or someone who can deliver it to them personally.
Explanation:
the main idea is the key concept. the details help the main idea with who, what , where, when mayor or small. sorry that's all I can think of
B is the correct answer hope this helps a lot
