According to the passage, what is the primary difference between Gall's and Flouren' s views
A． Flouren's theory was based on a belief in a unitary soul, whereas Gall's was not.
B． Flouren articulated a clearer distinction between sensation and perception than Gall.
C． Flouren refused to accept Gall's theory that all brain functions could be ascribed to particular areas of the brain.
D． Flouren maintained an evolutionary theory of brain development, whereas Gall believed faculties were fixed from birth.
E． Flouren believed that sensory-motor functions were differentiated, while Gall never experimentally established this.