When the Prices Were ($4, $1), Maria Chose the Bundle

Multiple Choice

When the prices were ($4, $1) , Maria chose the bundle (x, y) = (8, 6) .Now at the new prices, (p_x, p_y) , she chooses the bundle (x, y) = (7, 9) .For Maria's behavior to be consistent with the weak axiom of revealed preference, it must be that

A) p_y = 4p_x.
B) 4p_y < p_x.
C) 3p_y < p_x.
D) p_x < 3p_y.
E) None of the above.