When small solute particles or liquids are taken into the cell - what is it called?

In cellular biology, pinocytosis, otherwise known as fluid endocytosis and bulk-phase pinocytosis, is a mode of endocytosis in which small particles suspended in extracellular fluid are brought into the cell through an invagination of the cell membrane, resulting in a suspension of the particles within a small vesicle .

Explanation:

i might be wrong but i think its a. let me know if i’m right and have a good rest of your day!