Match the List-I (Management Thinkers) with List-II (Contributions) and choose the correct option.
\[ \begin{array}{|c|l|c|l|} \hline \text{List-I (Management Thinkers)} & & \text{List-II (Contributions)} & \\ \hline (a) & \text{F.W. Taylor} & (i) & \text{Administrative principles of management} \\ \hline (b) & \text{Henri Fayol} & (ii) & \text{Human relations approach} \\ \hline (c) & \text{Elton Mayo} & (iii) & \text{Scientific management principles} \\ \hline (d) & \text{Peter F. Drucker} & (iv) & \text{Management by objectives} \\ \hline \end{array} \]