Which One of the Following Items Does Not Characterize an Oxidizing

Multiple Choice

Which one of the following items does not characterize an oxidizing agent?

A) An oxidizing agent gains electrons.
B) An oxidizing agent causes another species to be oxidized.
C) The oxidation number of an oxidizing agent decreases.
D) A good oxidizing agent is a metal in a high oxidation state, such as Mn^7.
E) An example of a good oxidizing agent is an alkali metal, such as Na.