As a special commodity, books are a tool for shaping the human soul and educating people, so they are priceless and cannot participate in market competition. Their pricing can only be converted according to costs, distribution fees, and small profits, and unified national pricing is implemented. The book price is actually intended to rise, and the result will bring a lot of harm. What is the view that the above paragraph mainly supports? ['Because its pricing is difficult to confirm, it cannot participate in market competition.', 'If its price fluctuates arbitrarily, it will have extremely bad consequences.', 'The publishing unit cannot make a profit because it cannot participate in market competition.', 'If you participate in market competition, you will lose its effect on human society.']