Final answer:
The negation of the statement "All dogs are loyal" is the statement "Not all dogs are loyal". The correct answers are A. All dogs are disloyal and F. There is a dog that is disloyal.
Step-by-step explanation:
The negation of the statement "All dogs are loyal" is the statement "Not all dogs are loyal". So the correct answers are A. All dogs are disloyal and F. There is a dog that is disloyal. These options express the idea that there exists at least one dog that is not loyal, which is the opposite of the original statement.