[Solved] The no trend time series model is given by A)TR<sub>t</sub> = B<sub>0</sub> + B<sub>1t</sub> B)TR<sub>t</sub> = B<sub>0</sub> C)TR<sub>t</sub> = B<sub>0</sub> + B<sub>1t</sub> + B<sub>2t</sub><sup>2</sup> D)TR<sub>t</sub> = B<sub>0</sub> + B<sub>1l</sub>n(t) Ethical Screen: A mechanism designed to prevent conflicts of interest or ethical issues within an organization or profession by separating conflicting parties or interests. Ethical Decision: A choice made based on moral principles and values, considering the rightness and wrongness of the options and their outcomes. Whistle Blowing: The act of exposing unethical or illegal activities within an organization to people or entities that can take action. Child Pornography: The illegal creation, distribution, and possession of explicit images or videos of minors.