is said to be incorrect, find the correct answer

Consider the resonance structures of formate. : O O. .O: Macmillan Learning H H Select the true statements about the resonance structures. Each oxygen atom has a double bond 50% of the time. The actual structure of formate switches back and forth between the two resonance forms. C The actual structure of formate is an average of the two resonance forms. Each carbon-oxygen bond is somewhere between a single and double bond. Incorrect