What percentage of registered electors in Essex voted for the first-choice police and crime commissioner?

The answer of 3.9% is correct because it accurately represents the percentage of registered electors in Essex who voted for the first-choice police and crime commissioner in the specific election context being referred to. This figure likely reflects low voter turnout or a highly competitive race where the winner did not receive a large proportion of the total votes relative to the number of registered electors.

Understanding this percentage within the context of voter behavior in local elections is important, as municipal and local positions often see lower engagement compared to larger national elections. Hence, the correct answer showcases the specific electoral dynamics at play in Essex during that election, emphasizing the challenges candidates face in mobilizing a significant portion of registered voters.