Cholera causes rapid severe dehydration and often leads to death. Oral rehydration therapy, feeding dilute salts and glucose is very effective because:
1. bacterial damage to intestinal transport of ions is reversed by glucose
2. the active transport of glucose and sodium from the cell to the intestine is still intact
3. the secondary active transport or co-transport systems of the intestine are still functioning
4. the dilute salts and glucose cause removal of excess water from the body

Consider the given two statements

I. Placing phospholipids into an aqueous solution immediately results in their forming a lipid bilayer.
II. Phospholipids have a strong affinity for other phospholipids, leading to self assembly by covalent bonding.

1. Both I and II are correct and II explains I
2. Both I and are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect