You are designing a SharePoint 2010 application. You need to design the application according to the following
requirements:
The application must contain a workflow that can be started manually through the SharePoint user interface or
through a call to SPWorkflowManager.StartWorkflow.
.The workflow must not be associated with a specific list or a document library.
Which approach should you recommend?

A.
Set the Site Scope property in Workflow Settings to enable the workflow across the entire site.

B.
Create a reusable declarative workflow.

C.
Create a sequential site workflow.

D.
Create a sequential list workflow.