In the lesson, you read one thesis for an essay on the topic of sibling rivalry. Which might be an effective thesis for a different essay on the same topic?

A) Sibling rivalry is common because siblings may want the same resources or may want to be the best.

B) If you have a brother or a sister, then it is important for you to read about sibling rivalry.

C) Believe it or not, sibling rivalry can creep into even the most peaceful of families.

D) Everyone should know the facts about sibling rivalry in order to understand the way families work.