Which of the following assumptions on preferences leads to an interior solution to the consumer choice problem (i.e., one in which the optimal consumption choice involves some of each good)? Classify each case as:

Definitely YES (an interior solution is certain) Definitely NO (an interior solution is impossible)

or Possible (an interior solution might happen) Items(8 items)

Categories Definitely YES X Definitely NO V Possible X strictly convex preferences strictly concave preferences concave preferences perfect complements a good and a bad perfect substitutes convex preferences discrete goods