<span>C: Short Answer They contrast quite a bit. Antigone doesn't mind being forceful and determined. She chooses what is right rather than what is convenient. She does not really go with the flow. In a way, all 5 statements you've given me have truth in them. Being concerned about public opinion is a modern concept, but Ismene will go with what is easiest. She is weak willed in that sense, but I think there are better answers than A.
The second one is not entirely true. Creon's Law is a sore point with Antigone, and she defies it with open anger and a powerful non negotiableness, which leads to her fate at the end. Ismene does defy Creon, so she is not without courage.
C is true too. But by the end she is not so timid. That's the point of comparring these two. They do have similarities.
D This depends entirely on how you see the contrast between civil law and moral principles. The Old Testament for example, sees these as intertwined, and I'm not sure that Sophocles didn't as well.
E is the only one you can eliminate. Antigone is prepared to defend her brother to the end.
So what do you pick? I would pick C, but be aware that it can be incorrect.
"<span>How many times greater is the acidity of hydrochloric acid than vinegar?" is the best option from the list, since this is what the chapter is primarily dealing with. </span>