Which of the statement is not true for compounds like glycoprotein and glycolipids?

1. A Option A: They are conjugated molecules of carbohydrates
2. B Option B: Both have role in the extra cellular matrix of animals and bacterial cell wall
3. C Option C: They are components of biological membranes.
4. D Option D: Both are produced and secreted by endoplasmic reticulum

How we write and check questions