Answer: Option C. " Interstitial fluid"
Step-by-step explanation:
Interstitial fluid is also called tissue fluid which is found in interstitial spaces (tissue spaces) that is a solution surrounding the cells of multicellular animals.
Interstitial fluid provide nutrients and oxygen to the cells and removes waste from the cells of body. when new interstitial fluid form, it replace the older fluid, which pours towards lymph vessels. After entering the lymph vessels, it is known as lymph.
Hence, the correct answer is option C.