Step 1: Understanding the Concept:
Intellectual Disability (formerly known as Mental Retardation) is classified into different levels of severity based on adaptive functioning in conceptual, social, and practical domains. These levels indicate the degree of support an individual requires. "Higher level of dysfunctioning" means more severe disability and a greater need for support.
Step 2: Detailed Explanation:
The question asks to arrange the levels from the highest level of dysfunctioning to the lowest. This means starting with the most severe level and ending with the least severe.
\begin{enumerate}
Profound Intellectual Disability (D): This is the highest level of dysfunctioning. Individuals require pervasive support in all aspects of daily living.
Severe Intellectual Disability (C): The second highest level. Individuals require extensive support for most daily activities.
Moderate Intellectual Disability (B): Individuals require limited support for daily living and work tasks.
Mild Intellectual Disability (A): This is the lowest level of dysfunctioning. Individuals can often live independently with minimal support.
\end{enumerate}
Therefore, the correct order from highest to lowest dysfunctioning is Profound, Severe, Moderate, Mild, which corresponds to the sequence (D), (C), (B), (A).
Step 3: Final Answer:
The correct order from higher to lower level of dysfunctioning is (D), (C), (B), (A). This is option (4).