PLZ HELP!! what best describes a phospholipid bilayer?

a. their chemical formula is (CH2O)n
(the n might be a typo but that's how the teacher wrote it)
b. they form cell membranes
c. they are proteins
d. they are ionic​

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.

well that depends on how deep the hole is. you'd first go through te crust of the earth, then the upper mantle, then the lower mantle then the outer core, then the inner cor then you'd be stuck in the core to melt.

me on my last question.