Kartagener's Syndrome,characterized by Frequent Respiratory Infections,arises from a Defect in Which

Kartagener's syndrome,characterized by frequent respiratory infections,arises from a defect in which respiratory structure?

A) Cartilage in bronchi
B) Cilia in respiratory epithelia
C) Goblet cells in bronchioles
D) Pulmonary alveolar capillaries
E) Surfactant in alveolar cells