The target is a representation where the \(\text{middle}~\text{half}~\text{of}~\text{the}~\text{data}\) spans \(6~\text{units}\). Evaluate candidates A–E, then report the \(\text{complete}~\text{matching}~\text{set}\). For \(\text{each}~\text{raw}~\text{data}~\text{set}\) with an \(\text{even}~\text{number}~\text{of}~\text{values}\), split the data into \(\text{equal}~\text{halves}\) and take \(\text{each}~\text{half}\)'s median for \(Q_{1}\) and \(Q_{3}\).

A. Data set: \(4,~7,~8,~10,~12,~14,~15,~18\)
B. Five-number summary: minimum \(3\), \(Q_{1}\) \(9\), median \(11\), \(Q_{3}\) \(15\), maximum \(20\)
C. Statement: “The interquartile range is \(6\), so the middle \(50\%\) of the values are spread over \(6~\text{units}\).”
D. Data set: \(5,~6,~8,~9,~12,~14,~16,~17\)
E. Statement: “The range is \(6\), so the middle \(50\%\) of the values are spread over \(6~\text{units}\).”