Read the sentence to find out whether there is any error in it or not. The error, if any, will be in one part of the sentence. The number of that part is the answer. If there is no error, the answer is (5). Ignore errors of punctuation, if any. 

The amygdala is more practical (A)/ than the PCC, translating (B)/ the data received by your senses and (C)/ linking them to social signals. (D)