500
Revise this sentence so that the emphasis is on the tree's appearance:
"As I walked along the street, I saw a tree, which was charred and looked like it had been struck by lighting."
As I walked along the street, I saw a tree. It was charred and looked like it had been struck by lighting.
As I walked along the street, I saw a tree. This tree was charred, as if it had been struck by lighting.
As I walked along the street, I saw a charred tree. It looked like it had been struck by lighting.