Scientists have observed increased gas emissions and ground deformation around Mount Vesuvius. Based on these observations, what is the most logical prediction and its supporting reason?
A) The local tourism will boom because the mountain looks more active.
B) A volcanic eruption is likely because these are common signs of an impending eruption.
C) The climate will get colder due to the increased gas in the atmosphere.
D) People will move closer to the mountain to study the new formations.