According to Standard II(B), market manipulation involves the dissemination of false or misleading information to influence trading activity. This includes actions such as spreading false rumors or issuing overly optimistic projections to artificially inflate a security's price, followed by selling it once the price has been driven up. Such behavior is a clear violation of the Standard.

• Option B (Incorrect): Standard I(B) pertains to maintaining independence and objectivity in professional activities, not market manipulation.
• Option C (Incorrect): Standard II(A) addresses the use of material nonpublic information, which is unrelated to the scenario described.