Context: Riley is deciding whether to plant roses or a pine tree in her backyard. She wants to make her backyard more beautiful. But she also wants to leave space for doing fun things.
Suppose Riley decides to plant the roses. Which result would be a cost?
A. She will save some space. The roses will use up less space than the pine tree would have used up.
B. Riley will give up the chance to look at the pine tree. She thinks it would have looked more beautiful than the roses.
Identify the correct option from the choices provided and respond with the letter of the correct option.
Answer: B