Answer: Option C.
Interstitial fluid and plasma.
Step-by-step explanation:
Interstitial fluid and plasma are the major components of extracellular fluid because extracellular fluid are fluid that are located or found outside the bodily cell of an organisms. The are sealed in blood vessels and in the body the insterstitial fluid and plasma( the liquid part of the body) is found outside the body cells, there fore they are the major components of extracellular fluid.