Which of these was NOT associated with the English Civil War?

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

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal

How was the creation of money handled under the arrival of confederation