<span>Cry loudly, lift shrill voices like magicians</span>
Answer:
A. If she ever deeply wavered.
B. If she swayed, the family shook.
C. she seemed to know to accept
C. where no considerable European settlement is possible
Though all the passage clearly expresses the author's idea to convey that British is superior to all countries, option C is the phrase that most clearly suggest that.
By using the words "no (...) is possible", the author expresses that normally people considered impossible/unfeasible a big European settlement in their lands, but since they are the British Empire, they are superiors and therefore they are the ones who can make it possible.
