D. "Adriana, it's time for bed," her mother said.
George Washington's view on bigotry was that people who do not value variety and religious freedom are bigots and this is what is found in Patel's point of view which is that people need to work together regardless of their religion.
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.
We need the passage or answer choices.