Right option is (a) \(\frac{12EI}{h^3}\)

Explanation: In the formulation of the Euler-Bernoulli beam theory, there are two degrees of freedom at a point, w and \(\frac{dw}{dx}\). Typically, the finite element model of this theory uses cubic polynomial. The first element of the stiffness matrix is \(\frac{12EI}{h^3}\), where E is Young’s modulus, I is the area moment of inertia and h is the length of the element.