What is the main problem a Salesforce Architect will face to provide a solution?

Universal Containers (UC) has Affiliates who sell containers in countries where UC does not have a local office. UC has leveraged the Partner Community to manage the sales cycle.

One of their affiliates has exponentially grown in the last years and restructured its internal sales team with the following structure:

Sales VP …> Direct of sales ..> Sales Manager ..> Sales Reps

What is the main problem a Salesforce Architect will face to provide a solution?
A . Partner Community does not support Role Hierarchy.
B. Partner User Roles are limited to three levels.
C. The Channel manager Role can not be shared with Partner Community.
D. Super User does not work in Partner Community

Answer: B