Answer:
A. Spacecraft images show fountains of ice spraying into space from Saturn's moon Enceladus.
B. Jupiter has three moons for which there is evidence of a global, subsurface ocean of liquid water, with the strongest evidence favoring an ocean on Europa.
C. Io is the most volcanically active world in the solar system.
D. Scientists have detected lakes of liquid methane and ethane on the surface of Titan.
E. The two moons that are larger than the planet Mercury are Titan and Ganymede, which is also the largest of Jupiter's moons (and largest moon in the solar system).