Giant ice volcanoes has been identified on: ________?

A. Pluto 
B. Jupiter
C. Saturn
D. Neptune

Explanation:

Scientists from the American space agency NASA say they have found evidence of large ice volcanoes on the dwarf planet Pluto. The finding is based on images and data collected by NASA’s New Horizons spacecraft. Researchers report in a new study that they identified numerous round-shaped formations on Pluto’s surface.