Answer:
The character of Lady Bracknell was seen in a way that she represents British aristocracy. Wilde expresses her snobbishness and hypocrisy when Jack refuses Cecily and Algy to marry if Bracknell doesn't let him marry Gwendolen. Lady Bracknell refuses, showing her standing by and embracing the principles of British aristocracy.
Answer:
The author chose to use words like affectionately, sweet and savory, Treasure chest, and Delicate to show that the tone is sweet and gentle. When the author uses these words, it makes the reader think that they are in a relaxed atmosphere and makes them feel like they are at grandma's house. You could also say it gives the reader an Illusion that they are more comfortable.
Based on the given sentence above, the correct answer for this would be the third option. Basing on the point of view of the speaker, we can say that it is in the third person in which he/she means of Akiko. Since Akiko is only one, this is considered as singular. Hope this answer helps.