The transport process that involves the greatest absorption of extracellular fluid is
a. exocytosis.
b. pinocytosis.
c. receptor-mediated endocytosis.
d. plasmolysis.
e. phagocytosis.

The answer is pinocytosis.

Explanation:

Whether other methods for endocytosis involve more specific substrate selection or the absorption of large macromolecules, small molecule or low concentration substrates are absorbed through pinocytosis. By absorbing extracellular fluid that can contain a variety of substrates within it, the cell can acquire important nutrients albeit nonspecifically.

not only is it colder, it also becomes darker, less salty, and more dense.