Question

Which of the following graph is isomorphic to

Answer 1

Correct option is 

The graph in option (A) has a 3 length cycle whereas the original graph does not have a 3 length cycle 

The graph in option (C) has a vertex with degree 4 whereas the original graph does not have a vertex with degree 4

The graph in option (D) has a 4 length cycle whereas the original graph does not have a 4 length cycle