4. Suppose p1 = p2= $1. Ibrahim has $20 to spend and is considering choosing 10 units of X1 and 10 units of x2. He has nice convex preferences and more of each good is better for him. When x1 is drawn on the horizontal axis and x2 is drawn on the vertical axis, the slope of his indifference curve (MRS) at the bundle (10, 10) is -1. a. The bundle (10, 10) is the best bundle he can afford. b. He would be better off consuming more of good x1 and less of good x2. c. He would be better off consuming more of good x2 and less of good x1. (1. He must dislike one of the goods. e. More than one of the above is true