Box 1: 4 -
A container can have up to 5 stored access policies.
Maximum number of stored access policies per blob container: 5
Box 2: 1 -
Blob version supports one version-level immutability policy and one legal hold. A policy on a blob version can override a default policy specified on the account or container.
Reference:
https://docs.microsoft.com/en-us/azure/storage/blobs/scalability-targets
https://docs.microsoft.com/en-us/azure/storage/blobs/immutable-storage-overview