Materials:
- Metal
- Steel
- Limestone
Why? I picked Metal because It is a strong sturdy material, and the wolf definitely won't be able to blow it down. I picked Steel because same as Metal, Steel is a strong material and would be able to hold of a few blows. Last but not least, Limestone Because it is very strong, I have done some research and this is what I got:
Limestone is a type of rock that is basically made up of bits of animal shells, And for over thousands of years they keep collecting on the seafloor. And when these things are burnt, they result in Lime Stone. Please correct me in the comments below if I have gotten something wrong, or would like to add on some information.