1. D
2. C
3. E
4. A
5. D
6. A

I'm not sure I understood 6 correctly...

I've been trying to win this contest for months, so let's see if I can do it this time: A group of students in a poetry class is being assigned readings. Each of three students _ Francis, Grace, and Hu _ will read at least one of four poems _ Walkabout, Xtravagance, Yonder Cloudbreak, and Zoolandia....

The modification below of #1’s hypo disproves B. I switched G’s Y for an X, added a W (Rule 3), and then added a Y/Z to H (Rule 2). F | Y G | X W H | W X Y/Z This actually breaks the fourth rule. There's been a lot of disagreement about # 6. Here are the six possibilities: [...] Excellent work. I'm...