The semantic processing of the words in a short poem illustrates
a. procedural memoryb. the peg word systemc. the serial position effectd. deep processing

The answer is: D. Deep processing

When a certain word undergone a 'deep processing'in our brain, there is an encoding process that occurs so our brain can decipher the core meaning/definition on that words.  Because of this , words that undergone this process tend to stay longer in our memory and will be easier to be recalled by our brain.

b) trade is easy because of the direct line between their major ports. bilateral trade reached 89,6 thousand million.

unless they converted, many non-christians (mainly jews and muslims) were persecuted