Answer:
Red blood cells
Step-by-step explanation:
Lymph is a colorless fluid that contains white blood cells and the fluid drains into the bloodstream through the lymphatic system. The lymph provide protection from the pathogens and helps in providing immunity to the organisms.
Lymphatic system contains water, lymphocytes, ions and dietary lipids. Red blood cells are absent in lymph which makes it a colorless fluid.
Thus, the correct answer is option (c).