Referencing concepts of resistance/mechanics of materials, specifically to a group of equations that associate stresses and strains. Based on the e...

Referencing concepts of resistance/mechanics of materials, specifically to a group of equations that associate stresses and strains. Based on the elasticity equations, analyze the following sentences: I- σ corresponds to the normal stress on the cross-sectional area of the member, N/m2. II- The self-weight of the construction elements and the elasticity equations does not vary according to the specific mass of the construction materials used. III- The direct permanent elasticity equations are constituted by the deformations imposed by support displacements. IV- E corresponds to the modulus of elasticity, N/m2. V- ε, deformation associated with the normal stress, without units. Choose the CORRECT alternative:

A As sentences I, IV and V are correct.
B As sentences I, II and V are correct.
C As sentences II, III and V are correct.
D As sentences I and III are correct.