The type of sentence given is a compound sentence. It is a compound sentence because it consists of two independent sentences: "I already said yes to someone else" and "I can't go to the dance with you". In order to link the two sentences, the conjunction "because" is used.
Answer:
Receiver’s preference and level of technical expertise
Explanation:
This is very important because any well prepared information presented using a communication channel that the target audience does not use or prefer is a wasted effort.
For example, a company that wants to target elderly people with its products, having been aware through a survey that they prefer television ads to online ads. Which means that because of their limited technical expertise, a tv ad is the best channel of communication.
You should look at web sources that have recently been updated because a lot of times new information is present that could change the original point/evidence. This could discredit the source. You also should do this because the newer the information, the more credible it is in the time (older information could easily be outdated).
The devil was the adversary of the Purtians
