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In steel, the Young's modulus and the strain at the breaking point are 2×1011Nm-2 and 0.15 respectively. The stress at the breaking point for steel is therefore

(a) 1.33×1011Nm-2                   (b) 1.33×1012Nm-2

(c) 7.5×10-13Nm-2                   (d) 3×1010Nm-2