If Each of the Two Players Represented in an Edgeworth

Multiple Choice

If each of the two players represented in an Edgeworth box has Cobb-Douglas indifference curves, then the contract curve will be:

A) The vertical axis.
B) the diagonal line that begins at the opposite corners of the two players' origins and divides the box into two equal triangles.
C) the series of tangency points where the two players' indifference curves have but one point in common.
D) the horizontal axis.