JEE Main 2021 Chemistry question

Statement I : Sphalerite is a sulphide ore of zinc and copper glance is a sulphide ore of copper. Statement II : It is possible to separate two sulphide ores by adjusting proportion of oil to water or by using 'depressants' in a froth flotation method. Choose the most appropriate answer from the options given below :

• (A)Statement I is true but Statement II is false.
• (B)Both Statement I and Statement II are true.Correct
• (C)Statement I is false but Statement II is true.
• (D)Both Statement I and Statement II are false.