Answer:
"Now we are engaged in a great civil war, testing whether that nation . . . can long endure. We are met on a great battlefield of that war."
Step-by-step explanation:
The quotation above correctly uses ellipsis to shorten Lincoln's words.
First of all, an ellipsis is a set of three dots ( . . .) that is used to show an omission of an unnecessary information from a text that has little or no impact to the meaning of the sentence.
So, the first option above used the ellipsis correctly to shorten Lincoln's words while maintaining the general meaning of the sentence.