Question

what is c?
a
b
c
d
hydrophilic head
hydrophobic tail
embedded protein
phospholipid bilayer

Explanation:

The image depicts a cell membrane structure. The phospholipid bilayer (C) is a fundamental component of cell membranes. It consists of two layers of phospholipid molecules. Each phospholipid has a hydrophilic (water - loving) head (A) and a hydrophobic (water - fearing) tail (D). Embedded proteins (B) are also part of the membrane but are not the bilayer itself.

Answer:

Phospholipid bilayer