A. The idea that graffiti can have negative financial effects and the idea that graffiti can have emotional effects.
Explanation:
These are the two ideas that are connected through the use of the word "also." The first part of the passage tells us that graffiti has a large financial impact because it can be expensive to clean. The second part of the passage tells us that graffiti can contain words that upset people. The word "also" is connecting these two ideas. Therefore, the word "also" connects the idea that graffiti can have negative financial effects and the idea that graffiti can have emotional effects.
