Which of the following does a simple circuit require?

a. an energy source, a resistor, and a capacitor
b. a load, a conductor, and a resistor
c. a load, a resistor, and a capacitor
d. an energy source, a load, and a conductor

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.