Which of the following sentences is structured correctly? (5 points) nathan said "i'm really sorry." nathan said—"i'm really sorry." nathan said, "i'm really sorry . ." nathan said—"i'm really sorry . . "

C) Nathan said, "I'm really sorry..."

Explanation: In almost all the cases, we must use a comma before a quotation mark (one of the exceptions is when the quotation is introduced by a conjunction like "whether", "if" or "that", also sometimes we can use a semicolon or a period to introduce the quotation). In this case the option that uses a comma before the quotation, is option C: Nathan said, "I'm really sorry...".

b. they require a huge investment of time, dedication ,training, and patience almost from the day they are born.

explanation:

the sentence gives a clear evidence of how carefully the sar dogs are selected and also specify from what time this exercise begins."almost from the day they are are born." this sentence shows as that this exercise begins early.

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