Jupiter Emits a Large Amount of Radio Emission Because

Jupiter emits a large amount of radio emission because:

A) charged particles blasted off of Io's surface move through Jupiter's magnetic field
B) violent storms in its atmosphere produce a lot of lightening
C) Jupiter is so cold that its blackbody radiation peaks at radio wavelengths
D) Jupiter's thick inner shell of metallic hydrogen is electrically conductive
E) Jupiter's core has a very high temperature and pressure