In the excerpt above, the sentence is a _compound-complex sentence_.
This one makes the most sense.
The plot of the story is that it is better to take your time to have something better than to be fast and have something that doesn't last long. :)
D is a chronological event. The War Memorial was created where, how and maybe why. The maybe why is only about why Washington was chosen.
B again is recounting exactly how the peace was brought about in korea in the 1950s. It's not a positional paper.
A is not a position although it could be made into one. This question is a bit ambiguous and you are forced to choose between A and C. I would pick C because it is a position. No matter what else is relayed, the thing you must determine is that the Dental Association has a position: prevention.
A cannot be so easily dealt with. The problem is that it has a position, but it looks like it does not have any kind of resolution. It's intent is to show that antibiotics have an effect on the food chain. If it said a "good" effect or a "bad" effect, it would be a shoo in.
Answer C <<<<< But don't be surprised if it is A nevertheless.
The correct answer is A. The artist portrays Pandora as she looks upon the jar with absolute focus. We can see the ocean in the background, but she is oblivious to it. All she can see is the jar, and we feel the gut-wrenching curiosity that torments her. In the painting she does not open the jar, but from her face we can tell that she probably will.