The largest limb is about 18 feet long . Susan is wondering what she can make out of a piece of it . I told Billy Bumpus that I 'd like to have this one piece to make a bow out of . Nice straight piece at that .

Possible answers: 1. None of the above choices .. 2. It 's a bunch of nice tree limbs .. 3. It 's a bunch of nice metal parts .. 4. It 's a bunch of metal ..
Q: Why is the group scavenging parts ?
2.