Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage. How would a vitalist view the work of the mind A: It is a very complex system facilitated by energy. B: It follows physic-chemical laws. C: It is a kind of philosophical process. D: It can not be separate from chemical workings of the brain.