The diagram shows a cross-section of a type of epithelium. In which part of the respiratory system is this type of epithelium located?
- Atrachea: present; bronchus: present; all bronchioles: present
- Btrachea: present; bronchus: present; all bronchioles: absent
- Ctrachea: present; bronchus: absent; all bronchioles: present
- Dtrachea: absent; bronchus: present; all bronchioles: present