When the Prices Were ($5, $1), Vanessa Chose the Bundle

Multiple Choice

When the prices were ($5, $1) , Vanessa chose the bundle (x, y) = (6, 3) .Now at the new prices, (p_x, p_y) , she chooses the bundle (x, y) = (5, 7) .For Vanessa's behavior to be consistent with the weak axiom of revealed preference, it must be that

A) 4p_y < p_x.
B) p_x < 4p_y.
C) 5p_y < p_x.
D) p_y = 5p_x.
E) None of the above.