When mixed with water, phospholipids spontaneously form membranes because they ______.
A) have hydrophilic phosphate groups that are attracted to water and hydrophobic fatty acid tails that avoid water
B) have hydrophilic fatty acid tails that are attracted to water and hydrophobic phosphate groups that avoid water
C) have hydrophilic heads that are attracted to their hydrophobic tails
D) are both fluid and mosaic
