Hello. You did not present the battles to which this question refers, nor did you present any text where we could look for an answer. This makes it impossible for your question to be answered accurately. However, I will try to help you in the best possible way.
To assess which battle had the most balanced number of soldiers on both sides, you need to know the number of soldiers, in each army, that was participating in the conflict. The battle that has the most balanced number, in this case, is the one where the two armies have a very close number of soldiers, or the same number. For example, if in a battle between Army A and Army B, Army A has 1000 soldiers and Army B has 300 soldiers, that battle has an imbalance in relation to the number of soldiers. However, if Army A has 1000 soldiers and Army B has 920 soldiers, we can consider that this battle is in balance, since the number of soldiers in each army is similar and each army will be able to attack and defend at similar intensities.
The answer is A, the supremacy clause established that in case of a conflict between federal and state law, federal law would overrule state law.
This is a hard one... but I believe it is either C or D. We know that wounded Allied soldiers were a big issue during the war and a big reason as to why the U.S. joined was to gain land and protect its allies that it related to (mainly being Britain). D is also a reasonable answer, but I highly doubt it is the other options. Double check your history book, but I think the answer is C.
<span>They are actually voting for the presidential electors</span>