How much stronger is the sun's magnetic field compared to Earth’s magnetic field?

The sun's magnetic field is indeed significantly stronger than Earth's magnetic field, and the correct comparison highlights that the sun's magnetic field can be about one hundred times more powerful than that of Earth.

This remarkable strength can be attributed to the sun's massive size and the complex processes occurring within its interior, including the movement of electrically charged plasma. While Earth has a more stable and relatively weak magnetic field primarily generated by its solid iron core, the sun's magnetic field is dynamic and influenced by various solar activities, such as sunspots and solar flares, which can amplify its intensity at different times.

In comparison to the other options, one hundred times is a widely accepted figure based on measurements of solar magnetic activities and their effects. The larger multipliers of fifty or two hundred are generally not supported by empirical data regarding the sun's field strength relative to Earth's, as these numbers exaggerate the difference. Ten times is also an understatement, given the vast difference in the properties of magnetic fields between the two. This makes one hundred times the most scientifically accurate response when considering the strength of the sun's magnetic field in relation to Earth's.