Wordiness
The word "sometimes" eliminates the need for "every now and then," making the sentence wordy.
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.
It could be bold print because authors use bold print to signal important information or new words. Hope I’m right :)
Dear (friend),
You should do your homework so that you understand the subject taught in class. If you don't do your homework, your grades will drop and you will not receive a good grade in the class.
Your friend,
(Name)
I think it was c but I'm not 100% sure its been years since ive read the book