The diagram shown above represents the solubility curves of two salts, X and Y, in water, use this diagram to answer the question. At room temperature (300 K)

• A.Y is twice as soluble as X
• B.X is twice as soluble as Y
• C.X and Y are soluble to the same extent
• D.X is three times as soluble as Y
• E.Y is three times as soluble as X