It has been determined that Mars has no appreciable magnetic field. Knowing how magnetic fields form, what does this lack of magnetic field tell us about the structure of Mars? Question 3Select one: a. It probably has little or no molten iron in its core. b. It doesn't rotate fast enough to generate a magnetic field. c. Its dust storms knock out any magnetism. d. It is too cold to have a proper magnetic field. e. Its towering ancient volcanoes disrupt the field