1. Did you have a good time?
2. My weekend was cool. It was my birthday on Saturday. I played soccer with my friends.
3. My team lost but we had fun.
4. Then we ate pizza for my birthday party.
5. We watched avatar on television. Have you seen it?
6. I did my homework over the weekend so my teachers weren’t angry today.
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.