Which one among the following statements about 'Drumlin' is correct? (a) It is a streamlined hill moulded in glacial drift on the till plains. (b) It is a city located in central Europe. (c) It is a river. (d) It is a narrow road in Tibet.
A drumlin is a glacial landform, typically a smoothly rounded hill formed in glacial drift. The entire feature is shaped by the direction of flow of the ice and the movement of debris beneath the glacier.