Concept:Syllogism deduction using the rules of categorical statements.Explanation:Step 1: The first statement "All locks are keys" means every lock is a key.Step 2: The second statement "No key is a spoon" means no key can be a spoon.Step 3: Since all locks are keys, and no key is a spoon, it follows that no lock can be a spoon. Hence conclusion I follows.Step 4: Conclusion II "No spoon is a lock" is the converse of conclusion I, which always follows from "No lock is a spoon". Hence conclusion II also follows.Answer:Both conclusions I and II follow.