Answer: The main ideas is: You don't always have to rely on science, for the truth may be in everything science leaves out.
Explanation:
The answer is B.
"Grandma taught me to make cheesecake" is the only sentence that makes sense when it stands alone.
The two reason are development and if a event happens to the character, the character would change his attitude toward life, like someone dying would change the tone of the story.
