Two strain gauges fixed along the principal directions on a plane surface of a steel member recorded strain values of 0.0013 tensile and -0.0013 compressive respectively. Given that the value of E = 2 × 105 MPa and μ = 0.3, the largest normal and shearing stress at this point are

• A. 200 MPa and 200 MPa
• B. 400 MPa and 200 MPa
• C. 260 MPa and 260 MPa
• D. 260 MPa and 520 MPa