What term best describes region “B” of the phospholipid model above?

Answer:
Hydrophobic Phospholipid tail?
Explanation:
A would be the head that is hydrophilic.
Answer:
Hydrophobic
Explanation: The phospholipid has a chagred head (Phosphate region) and hydrophobic tails. Lipids are usually nonpolar and hydrophobic. That is why the tails are oriented towards the interior of the membrane.