A hoax can be intended with multiple purposes. Although many times a hoax can be a joke, or for personal entertainment... At times, it can also be with the intention to send out a message, which can be considered a "social change".
For example, let's say hackers hack into international banking systems. Although it may be a hoax, and without the intention to actually steal/for personal entertainment. It could be with the intention to prove that international banking systems need to improve their security.
That creates a social change.
It starts making society realizes their strengths as well as their weaknesses. It makes them value what they have, and also make them think about what they can improve on.
The correct answer is C.
The image of fellow citizens rising up and drowning the enemy in a wave of "pride and knives" demonstrates that they will remain defiant. It also best develops the speaker's viewpoint that adversity only makes his compatriots stronger.
the answer is Whom i think i don't know i'm not that good on grammar
A self-possessed person is one who is very assured of his or her own capabilities, is quite calm and collected, and just generally cool.
Having this in mind, the way that the character of the niece can be described is B. confident.
The other options don't make much sense here.