The diagram below represents the Boston Consulting Group $($BCG$)$ matrix, a tool managers use to evaluate business units. Managers decide whether to divest or keep each business and, if the decision is to keep it$,$ how much to invest in it$.$

Use your knowledge of the Boston Consulting Group matrix to select the correct labels in the diagram.

A$.($high$,$ low$)$

B$.($Market Growth Rate, Relative Market Share$)$

C$.($high$,$low$)$

D$.($Market Growth Rate, Relative Market Share$)$