In which two ways can UMS accomplish this?

Ursa Major Solar (UMS) is automating its business processes using Salesforce. UMS wants its Platinum partners to be able to approve installation projects and deals.

In which two ways can UMS accomplish this? Choose 2 answers
A . Assign external users as approvers on records and create a digital experience for those users.
B. Assign external users as the co-owners on records and create a digital experience for those users.
C. Add external users directly to approval queues and create a digital experience for those users.
D. Assign external users Super User access on records and create a digital experience for those users,

Answer: A,C