Match List-I with List-II.\[\begin{array}{|c|c|} \hline \textbf{List-I (Set operations)} & \textbf{List-II (Missing term)} \\ \hline \text{(A) If \(n(X)=17,\, n(Y)=23,\, n(X \cup Y)=38\), then \(n(X \cap Y)\) is} & \text{(I) 20} \\ \hline \text{(B) If \(n(X)=28,\, n(Y)=32,\, n(X \cap Y)=10\), then \(n(X \cup Y)\) is} & \text{(II) 10} \\ \hline \text{(C) If \(n(X)=10\), then \(n(X')\) is} & \text{(III) 50} \\ \hline \text{(D) If \(n(Y)=20\), then \(n\left(\tfrac{Y}{2}\right)\) is} & \text{(IV) 2} \\ \hline \end{array}\]