I think its the last one but im really not 100% sure. Hope It helped.
Answer:
True
Explanation:
The term used here is manner, otherwise called maxim of manner. Which emphasizes that one should be:
The above mentioned, ensures that one's contribution will be appropriate and timely, as regards a conversation at hand.
Answer:
opal
Explanation:
Although you have not submitted the excerpt to which the question refers, the word that makes the reference quoted in the question is "opal." Opal is a gem that presents many points of color change in light and dark tones, completely random. This gem is constantly associated with the inconstancy of human feelings and was used by Shakespeare exactly to present the inconsistent nature of Orsino.