To design a winning marketing strategy, what are the two important questions a marketing manager must answer?

A$.$ What customers will we serve? How can we serve these customers best?

B$.$ Who are our competitors? How can we beat our competitors?

C$.$ What markets should we enter? How do we maximize sales in those markets?

D$.$ What customers will we serve? How can we maximize profits?

E$.$ How can we serve our customers best? How can we maximize profits?