You should always Cite the source
Answrs: Part a) "Facts from a documentary.." This is talking about the benefits of artificial organs instead of donated ones.
Part b) "There are several ..." Because it is a sentence that is likely to precede facts. The others are opinions about how something 'SHOULD' be, and aren't presenting facts or claiming something.The first one 3ven says "I think..." which is clearly an opinion.
Answer:
c. the process of using messages to generate meanings in a situation in which a speaker transmits a message to a number of receivers.
Explanation:
Public communication involves a sender transmitting information through a communication channel to a group of people or audience. Thus, the sender makes use of a means by which the message goes from the source to the receiver. For example, a journalist writes an article about eating healthily on the beach, which is later published on the newspaper.
When they have heard the Banquo had died, Macbeth was angered because the murderers were not able to kill Fleance. The King saw the ghost of Banquo sitting on his throne. Macbeth was very surprised and tried to talk to the ghost which he was the only person who could see. Lady Macbeth tried to save her husband's face by saying telling the ghost to disregard Macbeth's behavior. She scolded him and told him to act normally.