The correct answer is A.
The family needs a safe, dry place to sleep in the winter. Their home in the salt cavern is described as an "impregnable castle." Falconhurst had fallen apart and they decided to use it as a summer home. They move to the cave to survive the winter.
Answer:
I am pretty sure the answer is C, challenging established ideas
Explanation:
At the performance tonight, I am going to perform a jazz piece that I choreographed myself.
Myself belongs to the family of the objective pronouns along with yourself, himself, herself, ourselves and themselves. They are object pronouns that are used when the subject and the object are the same noun. In this case the subject is I so that the correct reflexive pronoun that collocates with that subject is undoubtedly myself.