Use preamble in a sentence that explain its meaning

What would lead a historian to consider two events to have a relationship of correlation rather than causation?

Wire campaign finance laws administered by the fec not well enforced? a campaign finance rules are difficult to enforce b the fec has been plagued by corruption? c the fec does not have enough staff or funding d the fec was only created by the america vote act of 2002

Middle adolescence is characterized by