A deliverable-oriented grouping of project component is (n):

(B work package is the correct answer

Thanks for the invite.

Most appropriate is B - Work Package 

WBS is made up of many work components or work packages.

I seem B is good answer. Thank you mohammad.

Thanks for invite

I agree Mr mohamed asem 

In my opinion --- C. WBS --------

------------   Option (B) Work Package    -------------

Option b) Work Breakdown Structure - It is a deliverable-oriented grouping of project elements that organizes and defines the total scope of the project. It is a communication tool and it describes what needs to be done and what skills are required. Anything missing in the WBS should be added.