Which recommendation should a Solution Architect make to integrate B2B Commerce and Salesforce CPQ to accomplish this request?

Big Server Company sells complex server solutions to customers through a reseller channel. Resellers will purchase complex servers as well as have warehouses to store quick need products for their customers, such as additional hard drives and cables. Big Server Company currently uses Salesforce CPQ for its Sales team. Big Server Company would like to be able to give resellers easy access to purchase warehouse type products through B2B Commerce; however, the company would also like to allow resellers to request additional discounts for large volume orders from the Sales team.

Which recommendation should a Solution Architect make to integrate B2B Commerce and Salesforce CPQ to accomplish this request?
A . Utilize an integration software, like MuleSoft, to sync carts and pricing between B2B Commerce and Salesforce CPQ.
B. Implement the Salesforce CPQ & Billing and CPQ B2B Commerce Connector and use the Cart to Quote flow to sync the cart to Salesforce CPQ, and have a reseller price rule adjust pricing for the reseller based on volume.
C. Create a request special pricing button in B2B Commerce that will create an opportunity for the sales representative and allow the sales representative to follow up.
D. Implement the Salesforce CPQ & Billing and CPQ B2B Commerce Connector and use the Cart to Quote flow to create a quote from the Resellers Cart, allowing a sales representative to configure discounts and sync back to cart.

Answer: A