What is the function of the wool of a calorimeter​

Imma say go with a (:

The chemical reactions lab we did is typically called a "copper plating lab,  because the acid solution cleaned the pennies and made the copper look shinier;   the acid solution cleaned the paperclips and made them look like pennies;   &   the copper from the pennies was removed, and then added to the paperclips. 

Texas-flood watch and coastal flood barrierscalifornia-try and look for under ground water stream 

B. that is the answer