Trees and spanning trees

Vertices in listed order: [F | A | D | C | E]. Full edge list: D–A, A–C, F–E, C–E, F–A

Vertices in listed order: [F | A | D | C | E]. Full edge list: D–A, A–C, F–E, C–E

Vertices in listed order: [F | A | D | C | E]. Full edge list: D–A, F–E, C–E

Vertices in listed order: [F | A | D | C | E]. Full edge list: D–A, A–C, F–E, C–E, C–E