Why Is Felsic Magma Much More Likely to Produce an Explosive

Why is felsic magma much more likely to produce an explosive eruption?

A) Felsic magma is at a higher magma temperature,which will force an explosion.
B) Felsic magma cools at a lower temperature and thus will still be molten upon eruption.
C) Felsic magma has a low viscosity,which will flow easily and erupt at a faster velocity.
D) Felsic magma has a high viscosity,which will tend to stick in and clog volcanic conduits.