A)uncertain is the answer
Uhhhhh, wow. I'm surprised that you havent figured this out. Unless you aint in the USA then i'd understand. BUT SERIOUSLY, C'MON. Here's the answer:
They put up a memorial to show respect to the soildeirs who died for our country protecting its rights, and from being taken from us and made a communistic country.
D, because they aren't including any opinions about it, and therefore have a specific goal in mind of making the reader think something about the subject their piece.
<span>Doctors often performed medical procedures on stolen corpses</span>
<span>The parts that explicitly support that ideal are where he says that he calls "not upon a few, but upon all" and where he says that "the city and the country, alarmed at one common danger, came forth to meet and to repulse it." To me, that is saying that he is calling upon everyone to potentially sacrifice their life to obtain a goal that they believe is worth that cost.</span>