Request to answer Planning Certification Exam question

Hi Everyone,

Can anyone solve this question

Q7. You work for a company that produces electronic gadgets and outsources the assembly process to a contract manufacturer. You need to set up the contract 
manufacturer in Oracle SCP. 
Which is the initial step to model this relationship? 
a.Define the contract manufacturer as a supplier in the Supplier Portal. 
b.Create a new item for the assembled product and assign it to the contract manufacturer. 
c.Create a supply network plan with the contract manufacturer as a node. 
d.Establish an inventory organization for the contract manufacturer.

I would appreciate your insights on the correct answer and the reasoning behind it.