Final answer:
C. Endosomes. Endosomes act as the main sorting station for extracellular cargo molecules taken up by endocytosis.
Step-by-step explanation:
The main sorting station for extracellular cargo molecules taken up by endocytosis is the endosomes. Endosomes are cellular compartments that receive cargo from the plasma membrane through endocytosis and sort and distribute the cargo to different destinations within the cell.
After the cargo is sorted in the endosomes, it can be transported to various intracellular compartments or sent back to the plasma membrane. This sorting process ensures that the cargo molecules reach their intended targets and fulfill their specific functions.