A Minimum Temperature Exists (Absolute Zero)

Multiple Choice

A minimum temperature exists (absolute zero) . Why does no known maximum temperature exist?

A) Scientists have not yet determined what instruments might be able to measure the maximum temperature.
B) Scientists disagree on the pressure conditions with which to measure the maximum temperature.
C) Assuming no limit on the relative speed of atoms and molecules, it follows that there is no maximum temperature.
D) The maximum temperature is known to exist on the sun but we have not been able to measure it yet.