When a Work Order is in Activated status, what happens next?

When a Work Order is in Activated status, what happens next?
A . The Work Order is pending action from the buyer.
B . An invitation is sent to the Job Seeker to register and begin using SAP Fieldglass.
C . The Worker is now automatically registered and can enter Time and Expense Sheets.
D . The Work Order is pending action from the Supplier.

Answer: B