Direction: In each of the following questions, a paragraph has been split into four parts. You have to rearrange these parts to form a coherent paragraph.
A. However, the real challenge today is in unlearning, which is much harder.
B. But the new world of business behaves differently from the world in which we grew up.
C. Learning is important for both people and organisations.
D. Each of us has a 'mental model' that we've used over the years to make sense.