The scope should be broken down into smaller components for an effective work breakdown structure $($WBS$).$ Which of the following describes how far to decompose the scope?Until it is useful for realistic estimationsUntil it expands excessively to more levels than one $(1)$ pageUntil only one $(1)$ person is needed to do the workUntil only a $4$ to $5-$person team is needed to do the work