Final answer:
Advertisements and announcements shall not contain false or misleading statements, and should be relevant to the product or service being advertised.
Step-by-step explanation:
In advertising and announcements, there are certain things that they shall NOT contain. For example, they shall not contain false or misleading statements that constitute fraud. Advertisements are allowed to contain some amount of exaggeration or ambiguity, but they must not present claims as facts if they are not true.
Additionally, advertisements should not contain information that is not relevant or does not match the product or service being advertised. For instance, a wooden sign would be appropriate for a restaurant specializing in Bar-B-Q ribs, but it would be misleading for a store selling laptop computers.
In summary, advertisements and announcements must be truthful and not contain false or misleading statements. They should also be relevant to the product or service being advertised.