In FEM, what is the name of the shape function of an Euler-Bernoulli beam element?

(a) Hermite cubic interpolation function

(b) Lagrange cubic interpolation function

(c) Consistent element functions

(d) Quadratic interpolation functions

I have been asked this question during an online exam.

Asked question is from Library of Elements and Interpolation Functions topic in division Interpolation Functions, Numerical Integration and Modelling Considerations of Finite Element Method