Answer:
Option B is correct.
Step-by-step explanation:
At the moment, earthquakes cannot be predicted. To successfully predict one, experts would have to find a precursor, an event that could be found before every major earthquake, and so far this event (if exists) has not been detected.
Earthquakes do occur in predictable locations known as faulty zones but are currently impossible to predict exactly when one will occur.
Therefore, the best course of action would be ignoring the astronomer, as his prediction, it's most likely a baseless claim.