Which of the following statements(s) are correct with regard to factors affecting the elasticity of labour demand? [I]: If labour costs form a smaller production of total input costs, the greater will be the elasticity of labour demand. [II] The introduction of new production methods that improve productivity will lead to a greater elasticity of labour demand. [III]: If it takes long to develop and/or implement labour-saving technology, the greater will be the elasticity of labour demand. a. Only [I] and [II] are correct. b. Only [II] and [III] are correct. c. Only [I] is correct. d. Only [II] is correct. e. All three statements are correct