Which two solution components should a Solution Architect recommend to meet this requirement?

Universal Containers (UC) delivers packaging solutions to its customers based on volume schedule, which is part of a contract that UC is closing. Customers place orders against these contracts, and the orders are maintained in an ERP system outside of Salesforce.

Employees of UC want to track invoicing payment status on a monthly basis so that they can identify early when customer orders fall short of the contractual target.

Which two solution components should a Solution Architect recommend to meet this requirement? Choose 2 answers
A . Opportunities and Opportunity Products from Sales Cloud
B. Product and Revenue Schedules from Sales Cloud
C. Invoicing payment status sync between Salesforce Billing and ERP
D. Orders and Order Products from Sales Cloud and a MuleSoft integration with the ERP

Answer: A,B