it's either a or b. I'd have to read the rest if the article. but from what I read I think its b
Answer:
The similarities are that the sun and moon both gave a peice of themself, so they will not be lonely.
The difference is that a girl climbed a mountian and threatened the sun, while the moon offered his willingly.
5. I promise that I 
this secret to anyone.
The subjunctive mood is the best.
The subjunctive is rarely used in colloquial English. Totally irrelevant information, but... it is a relic from Latin, where there are many uses for a subjunctive. There is even a special conditional using the subjunctive mood that expresses the exact circumstances you described, which is usually called future less vivid.
I am not completely sure, but I would say that the apothecary suggests that Jane go to school because he believes Jane would be happier and healthier away from Gateshead. She tells him how unhappy she is, so that is why he wants to help her.
