What is an absolute temperature scale?

What is an absolute temperature scale?
 
  A) A thermometer that has been NIST calibrated to be absolutely correct
  B) A temperature scale that uses sensitive wireless sensors to detect the vibrational frequency of the molecules in a substance to determine its temperature to a high degree of accuracy
  C) A theoretical temperature scale that only applies to quantum physics
  D) A temperature scale with no negative temperatures and 0 equal to absolute 0

 Q. 2

The absolute temperature scale for Fahrenheit is:
 
  A) Fahrenheit absolute. B) Rankine.
  C) Celsius. D) Kelvin.

 Q. 3

As refrigerant passes through the metering device, it:
 
  A) Drops in pressure and temperature. B) Drops in pressure, but not in temperature.
  C) Drops in temperature but not in pressure. D) Increases in pressure and temperature.