JEE Main Chemistry question

The concentration of [H⁺] and concentration of [OH⁻] of a 0.1 M aqueous solution of 2% ionised weak acid is: [ionic product of water = 1×10⁻¹⁴]

• (A)0.02×10⁻³ M and 5×10⁻¹¹ M
• (B)1×10⁻³ M and 3×10⁻¹¹ M
• (C)2×10⁻³ M and 5×10⁻¹² MCorrect
• (D)3×10⁻² M and 4×10⁻¹³ M