JEE Main 2020 Physics question

Speed of a transverse wave on a straight wire (mass 6.0 g, length 60 cm and area of cross-section 1.0 ) is 90 . If the Young's modulus of wire is , the extension of wire over its natural length is -

• (A)0.01 mm
• (B)0.04 mm
• (C)0.02 mm
• (D)0.03 mmCorrect