What is the difference between TEE and HSM in Android Pie?

What is the difference between TEE and HSM in Android Pie?

Android has the concept of hardware backed security as TEE and in latest Android i.e., Android Pie devices can have a HSM (Strongbox).

1. What is the actual difference between TEE and HSM?
2. Does Android HSM can be used as a cryptography solution such as a Whitebox solution?
3. Does TEE can be used for the same purpose as mentioned in question 2?