A steel section having a cross section of 20 mm x 30 mm is subjected to an axial force of 240 kN. The steel section has produces a strain of 0.002. If it has a value of Poisson's ratio of 0.30. Which of the following gives the bulk modulus of the steel section.  a. 133333 MPa b. 166667 MPa c. 111111 MPa d. 144444 MPa

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