Everybody on our block is going to the block party.
This is the correct answer!
A. The phrase "tattered and fragile" modifies the word <em>book</em>.
I would add:
In order to do this, I will first get people to put trees into the deserts. Once the deserts are fully planted with trees, I will ask construction workers to build homes. Families can move here and request to open shops if they wish.
Hope this helps!