Why must a research paper always include a works cited page? (1 point)

a. to convince readers that common knowledge is valid
b. to give proper credit to original source material
c. to explain in detail why quotations are used in the paper
d. to list all authors' names correctly

i think either b or c but i'm not sure

However, the idea of real-life people living in what would become the united states for thousands of years before columbus ever left spain never dawned on me. what would be the best way to revise this sentence for greater clarity? a) however, the fact that columbus left spain thousands of years after people settled what would become the united states never dawned on me. b) it never dawned on me, however, the idea of real-life people living in what would become the united states for thousands of years before columbus ever left spain. c) however, the fact that people were already living in what would become the united states for thousands of years before columbus ever left spain never dawned on me. d) however, the idea never dawned on me that long before columbus ever left spain, real-life people lived for thousands of years in what would become the united states.

Read the passage from animal farm. "that was part of the arrangement! " cried squealer. "jones's shot only grazed him. i could show you this in his own writing, if you were able to read it. the plot was for snowball, at the critical moment, to give the signal for flight and leave the field to the enemy. and he very nearly succeeded—i will even say, comrades, he would have succeeded if it had not been for our heroic leader, comrade napoleon. do you not remember how, just at the moment when jones and his men had got inside the yard, snowball suddenly turned and fled, and many animals followed him? and do you not remember, too, that it was just at that moment, when panic was spreading and all seemed lost, that comrade napoleon sprang forward with a cry of 'death to humanity! ' and sank his teeth in jones's leg? surely you remember that, comrades? " exclaimed squealer, frisking from side to side. now when squealer described the scene so graphically, it seemed to the animals that they did remember it. at any rate, they remembered that at the critical moment of the battle snowball had turned to flee. but boxer was still a little uneasy. how does the characterization of squealer support the author’s purpose? squealer's dramatic accusations draw parallels between him and stalin’s propagandists. squealer's uncertainty shows that he is not a reliable ally of napoleon and is ineffective with messaging. squealer's ability to get the animals to listen to him shows that any animal can rise to be a leader in time. squealer's humble interactions with the animals reflect the importance of equality and cooperation.

Read the sentence and select the statement that best describes it. i should leave now. the sentence is complete. the sentence is missing a subject. the sentence has one dependent clause and one independent clause. the sentence is missing a predicate.