Which of the following statements is not correct regarding spirochetes? a. they have endoflagella between the outer membrane and the protoplasmic cylinder; thus

Which of the following statements is not correct regarding Spirochetes? A. They have endoflagella between the outer membrane and the protoplasmic cylinder; thus they are located in the periplasmic space of the cell B. Spirochetes like other bacteria swim best in media of low viscosity C. They are best viewed using dark-field microscopy D. Spirochetes have an ability to twist or contort their shape due to the occurrence of a special kind of flagella termed periplasmic flagella