Your answer that you are looking for is genes so its a genes
Answer:
Propel- to push or drive (someone or something) forward or in a particular direction.
So what would be the question you are asking? if you're asking how to hook a reader in your intro start with an onomatopoeia or something like: On a dark and stormy night Elle Mist sat in the corner of her room crying wondering when her parents would come home.
The answer is going to be either b or c. hope that helped