d and f Block Elements Part 3

Given below are some of the statements about Mn and Mn2O7. Identify the correct statements.
A. Mn forms the oxide Mn2O7, in which Mn is in its highest oxidation state.
B. Oxygen stabilizes the Mn in higher oxidation states by forming multiple bonds with Mn .
C. Mn2O7 is an ionic oxide.
D. The structure of Mn2O7 consists of one bridged oxygen.
Choose the correct answer from the options given below :