Really different types of moods describe romeo but the word that really describes Romeo is a rash and emotional young man. He feels deeply and acts quickly, often without thinking through his actions. Case(s) in point - he charges into Juliet's garden, even though he could be killed; he rushed to marry her; he rushed to attack Tybalt after Mercutio's death; he rushed to kill himself.
His attitude towards love is over-enthusiastic. Romeo believes that love is what makes life worthwhile - which is why he is so..
I would say the answer is C. Showing how a character reacts to or interacts with his or her surroundings shows a lot about that character. A setting can reveal a character's personality by showing how he/she interacts with the environment.