In Finite Element Method (FEM), Mesh convergence is a measure of the number of _____ required in a model to ensure that the results of an analysis are not affected by changing the size of the _____

(a) elements, mesh

(b) nodes, mesh

(c) nodes, element

(d) degrees of freedom, element

The question was asked during an internship interview.

This question is from Some Comments on Mesh Generation and Imposition of Boundary Conditions topic in section Single Variable Problems of Finite Element Method