With reference to absorption in human digestive system, select the CORRECT statements from the following-
A. Carrier ions like $\text{Na}^+$ bring about facilitated transport.
B. All ions are absorbed against concentration gradient only.
C. Facilitated transport requires energy.
D. Water is absorbed by facilitated transport.
E. Fructose is absorbed by facilitated transport.

Statement A is correct as certain substances like fructose and some amino acids are absorbed with the help of carrier ions like $\text{Na}^{+}$. This mechanism is called facilitated transport.

Statement B is incorrect because not all ions are absorbed against the concentration gradient. For example, chloride ions are generally absorbed by simple diffusion.

Statement C is incorrect because facilitated transport is a type of passive transport and does not require the expenditure of energy.

Statement D is incorrect as the transport of water depends upon the osmotic gradient, not facilitated transport.

Statement E is correct because fructose is absorbed by facilitated transport.

Thus, only statements A and E are correct.

Answer: A and E only