Read the following statements
I. Circular folds are deep ridges in the mucosa and submucosa
II. Villi are hairlike vascularized projections that give the mucosa a furry texture.
III. Microvilli are cylindrical apical surface extensions of the plasma membrane of the mucosa’s epithelial cells
IV. The epithelium of intestinal mucosa is called brush-border epithelium due to the presence of microvilli in them
Chose the option with all incorrect statements
I and IV
I and III
I, II and IV
None of the above
Hence, the correct answer is option d.