Answer: Permanent mood, vague and calm, of sadness and disinterest, which arises from physical or moral causes, usually of minor importance.
English Word: Melancholia
Explanation:
Usted, it is the formal version you tú
Answer:
B: Las
Explanation:
If you try plugging other of the options, they won't make any sense.
Los, is for more than one man
Las, is for more than one woman
La, is for one women
Lo is for one man
Therefore, B, is the answer :)