Context: Hansen is deciding whether to plant irises or an oak tree in his backyard. He wants to make his backyard more beautiful. But he also wants to leave space for doing fun things.
Suppose Hansen decides to plant the oak tree. Which result would be a cost?
A. The oak tree will use up more space than the irises would have used up.
B. Hansen will get to look at the oak tree. He thinks it will look more beautiful than the irises would have looked.
Select the correct answer from the given choices and respond with the letter of the chosen option.

A