Which of the following statement is//are incorrect regarding digestion and absorption of food in human beings `:-`

Which of the following statements is/are incorrect regarding digestion and absorption of food in human beings : (a) About 90% of starch is hydrolysed by salivary amylase in our oral cavity (b) Entero-endocrine cells in our stomach secrete the proenzyme trypsinogen (c) Vitamin-D is produced in human body in skin (d) Bile salts act as activator of pancreatic lipase

Which one of the following statements is true regarding digestion and absorption of food in humans?

Which one of the following statements is true regarding digestion and absorption of food in humans?

Which one of the following statements is true regarding digestion and absorption of food in humans?

Which one of the following statements is true regarding digestion and absorption of food in humans?

Which one of the following statements is true regarding digestion and absorption of food in humans?