Credit quiz: syllogisms

 You are asked to decide whether the argument presented is deductively valid, and, if not, whether it is an example of the UDM fallacy (an undistributed middle term) or another fallacy.  A fourth choice is whether something is wrong because of false information in either the premises or the conclusion.  (If you have been paying attention up to now, you should see why that fourth choice is never  a correct answer.)  You may repeat this quiz as often as you want, but if you find yourself puzzled by any mistake do take a look at the special key for this exercise.