It's possibly
C. They led to a greater divide between rich and poor.
Answer:
B. They form cell membranes
Explanation:
There's not really an explanation, that's just a fact. A phospholipid bilayer has two layers of, yep, phospholipids. They stay together well and kind of move around a little, allowing small particles to pass through. There are some proteins in them also that help them function as cell membranes.
Does it have multiple choice? I know the answer, I just want to make sure it's in the multiple choice.
