This is extravert. Extraversion is the state of obtaining pleasure from an outer world. They enjoy human interactions and they are enthusiastic, talkative and assertive. Extraverts like being among people. They like large social gatherings, such as parties, public demonstrations, and business or political groups. Therefore, they work well in groups. Extraverts are energized among people and they feel bored when they are alone.
D. Cheryl had never seen a alligator before she moved to Florida
Answer: Varies
Explanation: That means she was very evil.
An appropriate summary for the article "A Most Troublesome Element" is the last option - C. Arsenic is a naturally occurring, poisonous element that has threatened the health of humans since the Middle Ages.
It clearly states what the whole article is about.