Which license type should a Salesforce Admin use for these partner users?

Dreamscape Flowers needs to create a digital experience that meets the following requirements:

* It allows for collaboration between customer and partner users.

* Self-service for customer users is available.

* Partner users create or resolve cases for their customers and need to see case data on a dashboard.

* Partner users do not manage Leads, Opportunities, or Campaigns.

Which license type should a Salesforce Admin use for these partner users?
A . Customer Community
B . Customer Community Plus
C . Employee Community
D . Partner Community