It's either A or C, sorry if I'm wrong
Answer:
or 
Explanation:
Given


Required
Compare both items
On a number line, from left to right 0.38 comes before 0.7. This implies that 0.38 is less than 0.7.
So, by comparison, the amount of roast beef is less than the amount of ham, Dalton bought.
This can be represented as:

Substitute values for Roast Beef and Ham

The sentence is drawing a parallel between the two parties' reasons for going to war. Each of them is associated with a verb: one with "survive," the other with "perish." They are the two antonyms.
Antonyms are words which have opposite meanings. <em>Survive </em>means to contine living, and <em>perish </em>means to stop living.
What Lincoln meant by using this antonym-based parallelism is that the Confederacy fought to end the exisiting nation (meaning, to secede from the North and create a new nation), while the Union fought to keep the nation alive by preventing it from splitting.