Which of the following statements is FALSE?

A$.$ Graphically, the efficient portfolios are those on the northeast edge of the set of possible portfolios, an area which we call the efficient frontier.

B$.$ Graphically, the efficient portfolios are those on the northwest edge of the set of possible portfolios, an area which we call the efficient frontier. Graphically, the efficient portfolios are those on the southeast edge of the set of possible portfolios, an area which we call the Markowitz frontier. Graphically, the efficient portfolios are those on the southwest edge of the set possible portfolios, an area which we call the Markowitz frontier.