The slope of the stress-strain curve in the elastic deformation region is ____________*1 pointa) Elastic modulusc) Poisson’s ratiob) Plastic modulus

To determine the slope of the stress-strain curve in the elastic deformation region, we need to calculate the elastic modulus. The elastic modulus, also known as Young's modulus, is a measure of the stiffness of a material. It represents the ratio of stress to strain in the elastic region of deformation.

To calculate the elastic modulus, we need to obtain the stress and strain values from the stress-strain curve. The stress is the force applied to the material divided by its cross-sectional area, while the strain is the change in length divided by the original length of the material.

Once we have the stress and strain values, we can plot them on a graph and determine the slope of the linear portion of the curve. This slope represents the elastic modulus of the material.

Therefore, the correct answer to the question is option a) Elastic modulus.