I believe they are <span>dynamic characters</span>
D.
A, B, and C are all sentences with positive connotation. They describe favorable/desirable traits. Muddy water and skeletal are not positive phrases.
It's legs. Let me know if i was wrong..
Since the word contract means to squeeze together, it seems only logical that a contraction is two words made shorter by placing an apostrophe where letters have been omitted.