The correct way to incorporate the quotation is A:
According to one source, " He [Abraham Lincoln] was a natural raconteur."
The double quotes are used in order to transfer the exact words of someone, so they need to be used before and after the phrase " He was a natural raconteur". The square brackets are usually used to add information that was not originally there, in order to clarify something. In this example, the writer wants to clarify that the personal pronoun "He" refers to Abraham Lincoln, so s/he adds his name using square brackets.
The great Roman Empire was so powerful that it conquered a large part of Europe, as well as parts of Africa and Asia.
The Puritans had to face many obstacles and mischiefs on their way to the New World.
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The compound objects are bold
If a direct object is the recipient of action of the verb (what the verb does to something/someone), a compound direct object is composed of two or more such recipients.
Clasping Nausicaa's knees seemed to risky for Odysseus, since Nausicaa might have reacted poorly to his touch. Instead he talks to her, admiring her beauty. Nausicaa senses that Odysseus means no harm, so she decides to help him out. (Odysseues later tells the story of his journey to King Alcinous and Queen Arete---Nausicaa's parents who help him get back home to Ithaca.) Hope I helped!
A persuasive essay persuades the reader, like a debate. Note that you also need to have a debatable claim, you can't try to persuade someone that the sun is green.
Answer would only be: experts opinion