The inner lining of stomach is protected by one of the following from hydrochloric acid. Choose the correct one.

As we know that our stomach has a lining mucus cells. The mucus is secreted in the gastric juice by the glands present in the stomach wall of stomach from its own secretions of hydrochloric acid (HCl). HCl will cause the erosion of inner lining of stomach, but there is condition. Generally, it will happen when mucus is not secreted, leading to ulcer formation.