Final answer:
Hawat had a poison snooper over the dining table, a device from the 'Dune' series by Frank Herbert used to detect poisons.The right answer is b)
Step-by-step explanation:
The item Hawat had over the dining table was a poison snooper. This term comes from Frank Herbert's science fiction novel 'Dune', where a poison snooper is a device used to detect any poisons that might have been placed in or on food and drink. In this context, it is a sophisticated piece of technology used to ensure the safety of those dining, a precautionary measure against potential poisoning attempts.