If in a coded language, \(A\ O\ B\) means \(A\) is taller than \(B\), \(A\ ∆\ B\) means \(A\) is shorter than \(B\), \(A\ □\ B\) means \(A\) is as tall as \(B\). Then, which of the following represents that \(C\) is the shortest in the group of \(C, D\) and \(E\) ?