The answer is B. Keyword being "theory of radioactivity" and "influential scientists of the century." It's a persuasive keyword that will hook the readers. What is theory of radioactivity? How did her theory garner her the title of influential scientist of the century?
Choice A is vague and hardly persuasive. It's only characterizing her traits: curious and determined.
The correct answer would be C. Randomly follows others. This is because in the novel the gang has decided that T has better ideas or at least more interesting ones. They are intrigued by the prospect of blowing up the house and are eager to become T's followers, instead of Blackie's. To be fickle means to easily change loyalties.
A humorous essay spreads a humorous message, It's supposed to be entertaining.
