The correct option is D.
Transferable skills refers to those set of skills that do not belong to any specific field or industry, they are general skills and can be transferred from one job to another. Option D is the correct choice because all jobs require the employees to have problem solving skill, team building skills and communication skills; all these skills contribute to a successful career.
I believe this is Insert Controls
So the person can know what you want and it helps keep better track of emails and subject matters