What is the final step in how people process messages they receive?
a. processing information together with prior knowledge
b. applying and testing for confirmation
c. paying attention
d. arriving at conclusions and understanding

B. Applying and testing for confirmation
 

I personally would put B.) applying and testing for confirmation because I've taught and seen an entire lesson about this subject which is "Media Process and Campaigning". Hope that helps. If you want can you mark me as brailiest. I'm not saying you have too. ;)