JEE Main 2019 Chemistry question

Consider the following statements: (a) The pH of a mixture containing 400 mL of 0.1 M HSO and 400 mL of 0.1 M NaOH will be approximately 1.3 (b) Ionic product of water is temperature dependent. (c) A monobasic acid with has pH = 5. The degree of dissociation of this acid is 50%. (d) The Le Chatelier's principle is not applicable to common-ion effect. The correct statements are:

• (A)(a) and (b)
• (B)(a), (b) and (c)Correct
• (C)(a), (b) and (d)
• (D)(b) and (c)