Which of the following are correct? 1. Point A is the two-phase region and extraction can be performed in this region 2. Point B represents a single phase that does not split into two phases. 3. Point B is the pole point 4. The distance DC shows the solubility of water in ethyl acetate. 5. The component with the highest amount at Point C is acetic acid. 6. The acetic acid is completely miscible with water and ethyl acetate. 7. The solution at Point A contains 42% ethyl acetate, 28% acetic acid, 30% water. 1,2,3,6,7 3.4 .5 1,2,6,7 1,2,4,6,7 1,3,4,5,7 Bo birak