Which of the following statements are INCORRECT? A. All the transition metals except scandium form MO oxides which are ionic. B. The highest oxidation number corresponding to the group number in transition metal oxides is attained in Sc2O3 to Mn2O7 . C. Basic character increases from V2O3 to V2O4 to V2O5 . D. V2O4 dissolves in acids to give VO4 3- salts. E. CrO is basic but Cr2O3 is amphoteric. Choose the correct answer from the options given below:

1. A. A and E only
2. B. B and D only
3. C. C and D only
4. D. B and C only

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