Briefly explain why the following statements are incorrect. Clear and specific explanations should be provided otherwise marks may not be given. For example, for a statement " X is Y ", you should not just answer: "X is not Y ". You should explain why and state the correct statement such as: " X is Z. ." (i) If an ethical action must not be done, it is defined as an obligatory action. (ii) For the consequential ethical theories, the common good approach seeks to produce the greatest good and least harm. (iii) For the non-consequential ethical theories, the rights approach focuses on taking actions that are fair and just. (iv) For the stock price simulation with Geometric Brownian Motion, the shock component depends on the expected return. (v) Ethereum is an example of NFT