If a Volcano Was Actively Releasing a Large Amount of Volcanic

Multiple Choice

If a volcano was actively releasing a large amount of volcanic gas and then abruptly stopped,what might happen to the volcano in the near future?

A) It will become extinct because the magma supply has been rapidly withdrawn.
B) It will erupt effusively because the supply of volcanic gas has dissipated.
C) It will erupt explosively because the volcanic gases have no way to escape slowly.
D) It will erupt effusively because the gases have made the magma less viscous.