Answer: D. The Battle of Gettysburg was a three-day conflict in which Robert E. Lee's Army of Northern Virginia faced off against George Meade's Army of the Potomac. Instead of fighting defensively, which had won Lee many victories, the Confederates made a disastrous charge against the Union center.
Step-by-step explanation:
The best option is D as it corrects errors in spelling and grammar.
It corrected the ''one Lee...'' to ''won Lee...''.
It corrected the use of a lower case for Meade to an uppercase which is correct as Meade is the name of a person and so as a proper noun should always have its first letter capitalized.
It corrected the use of an upper case for ''Disastrous charge...'' to the lower case ''disastrous charge...'' which is correct because disastrous is not a noun in this instance.