Final Answer:
The legal concept most relevant to the situation described is D) Intention.
Step-by-step explanation:
In this scenario, the most pertinent legal concept is intention. Intention refers to the mental state where an individual purposefully engages in an action, fully aware of the consequences or results it might bring about. In the context of a developmentally delayed man sexually assaulting a child, the focus would be on whether the man intended to commit the act, irrespective of his developmental delays.
Sexual assault involves a deliberate action or intent to engage in non-consensual sexual behavior, and determining intent becomes crucial in legal proceedings. While the individual's developmental delay might affect their understanding or awareness, if the court establishes intent to commit the assault, it can affect the legal outcome.
Therefore, among the options provided, "Intention" is the most pertinent legal concept in this situation, as it addresses the crucial aspect of the individual's purpose or aim in committing the offense, regardless of any developmental delays impacting their cognition or understanding.