The mood (or tone) of the prologue is considered as sombre, dark, macabre... since from the start we're being told that this story is going to be a story of love, death and loss.
Well the four aspects of cultural context consist of Setting, Value, Custom and Lifestyle. So therefore answer choice B appearance is naturally wrong because it should be custom.
The secret garden represents the human spirit. mary frequently mentions how the garden seems to "talk" to her. this personification proves the answer correct.
good luck with th rest of your hw!
I believe the answer is C, sustain. Hope this helps :)
