A pharmaceutical company with 60% market share in a particular drug category refused to supply to a distributor who was also selling competitors' products. The refusal had no legitimate justification. Under Section 4 of the Competition Act, which statements are correct? Statement 1: The company's refusal constitutes abuse of dominance under Section 4. Statement 2: Market share of 60% establishes dominance for Section 4 purposes. Statement 3: The refusal is justified if the distributor failed to meet payment obligations. Statement 4: Refusal to supply can be an abuse even by a dominant firm if it causes exclusionary effects. Which statements are correct?