Which of the following statements is/are not true about the "Grid Organisation Development" (Grid OD) Program designed by Robert R. Blake and Jane S. Mouton?<br>1. It is a eight phase program lasting about three to five years.<br>2. Through this program, an organisation can move systematically from the stage of examining managerial behaviour and style to the development and implementation of an "ideal strategic corporate model".<br>3. Behavioural science concepts and rigerous business logic are combined in the Grid OD Program's six phases.<br>4. The single most significant premise on which Grid OD rests in that the 5, 5 way of doing business which is acknowledged universally by managers as the soundest way to manage to achieve excellence.

Correct Answer: 1 and 4 only