F. A graph G is color critical if the removal of any vertex of G decreases...

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F. A graph G is color critical if the removal of any vertex of G decreases the chromatic number. Which graphs in Exercise 1 are color critical? hould have the same color pronar (a) (e) (h) (b) 0 (1) (1) (0 (3) (d) (g) (a) AL ME b (r) (0) b (b) (d) € F. A graph G is color critical if the removal of any vertex of G decreases the chromatic number. Which graphs in Exercise 1 are color critical? hould have the same color pronar (a) (e) (h) (b) 0 (1) (1) (0 (3) (d) (g) (a) AL ME b (r) (0) b (b) (d) €