In the following question, a pair of words or phrases is followed by five pairs of words or phrases. Choose the pair that best expresses a relationship similar to that in the original pair.
Diffusion: Passive Transport
A. Exocytosis: Active Transport
B. Facilitated Diffusion: Active Transport
C. Osmosis: Active Transport
D. Endocytosis: Passive Transport
E. Sodium/Potassium Pump: Passive Transport