Suppose That Al the Physicist Observes a Single Radioactive Nucleus

Suppose that Al the physicist observes a single radioactive nucleus. The length of time until that particular nucleus decays is

A) unpredictable because of fundamental uncertainties arising from quantum physics
B) predictable, provided Al knows the precise nuclear state of this nucleus.
C) predictable from the known half- life of the nucleus.
D) unpredictable because of the practical difficulties of obtaining all the information needed to make the prediction.
E) unpredictable because of fundamental uncertainties arising from Newtonian physics.