Which of the following BEST describes a volcano
A. It is a place within the mantle where rocks melt to generate magman
B. It is a long tube in the ground that connects the magma chamber to Earth's
surface.
C. It is an opening in the Earth's mantle through which lava volcanic ash
and gases escape.
D. It is an opening on the surface of the Earth that allows material warmer
than its surroundings to escape from its interior:​