Final answer:
The transmembrane potential created by active transport of potassium and sodium is known as the C) Sodium-Potassium Pump. This pump helps establish and maintain the Resting Membrane Potential, which is important for cell function.
Step-by-step explanation:
The transmembrane potential created by active transport, constantly pumping potassium in and sodium out, is known as the Sodium-Potassium Pump. This pump uses cellular energy to move potassium into the cell and sodium out of the cell, establishing a concentration gradient and maintaining the Resting Membrane Potential. The resting membrane potential is a slightly positive charge that is important for the functioning of neurons.