This statement about the giraffes is a logical fallacy called hasty generalization.
The boy thinks that if one giraffe was friendly to him, that all giraffes are bound to do the same - he is generalizing something that doesn't have to be correct.
One way the slaver Haley and the slave George are contrasted with each other through the quality of their speech. Mr Haley was the bad slave owner and George being the slave. George invented the machine to speed the process of cleaning hemp, earning the adoration of the factory's proprietor. Haley removed him from the factory and claimed that George was too lazy to work. George was then sent to work menial labour.
George was forced to take new wife since there were no lawful marriages between slaves because they were not actual citizens. George used to read the bible a lot but one day Mr Shelby sold him to Mr Haley.
Winter is coming; I need a new coat.
Winter is coming, so I need a new coat.
Because winter is coming, I need a new coat.
The sentence structure of the original sentence is wrong because it is a run on sentence. The sentence has two complete thoughts/ideas without the proper punctuation between them. The first complete thought is "Winter is coming". The second complete thought is "I need a new coat." These need to either be joined with a semicolon or a comma and conjunction. The first answer uses the semicolon to join the two complete ideas into a compound sentence. The second correct answer uses a comma and conjunction, so, to join the two complete ideas. The last correct answer creates a dependent clause by beginning the sentence with "because". Then the comma shows the separation between the dependent clause and the independent clause.