ग्रेकुनास (Graicunas) का सूत्र निम्नलिखित में से किस प्रशासनिक सिद्धांत से संबंधित है?

A graded organisation of successive levels, where each lower level is subordinate to the next higher one, is called:

Regarding the scope and applicability of the principles of organisation within the framework of modern administration, which of the following statements is correct?