According to the passage, cytologists in the late nineteenth century were critical of the cell research of biochemists because cytologists believed that A. the methods of biochemistry were inadequate to account for all of the chemical reactions that occurred in cytological preparations B. the methods of biochemistry could not adequately discover and explain the structures of living cells C. biochemists were not interested in the nature of protoplasm D. biochemists were not interested in cell division E. biochemists were too ignorant of cytology to understand the basic processes of the cell