Which diagram should the BA use in this case?

Universal Containers is focused on an initiative to streamline its channel management processes. Due to the level of complexity, the business analyst (BA) will gather and document the key points in preparation to build a more detailed process map.

Which diagram should the BA use in this case?
A . SIPOC (Suppliers, Inputs, Process, Outputs, Customers)
B . Capability Model
C . Value Stream Map

Answer: A