G3A01 : How does a higher sunspot number affect HF propagation?

A Higher sunspot numbers generally indicate a greater probability of good propagation at higher frequencies

B Lower sunspot numbers generally indicate greater probability of sporadic E propagation

C A zero sunspot number indicates that radio propagation is not possible on any band

D A zero sunspot number indicates undisturbed conditions

Correct Answer: Higher sunspot numbers generally indicate a greater probability of good propagation at higher frequencies