Which is evidence that supports the dynamo theory?
O A. Earth's crust contains a large amount of iron.
OB. Earth's outer core contains liquids that conduct electricity.
O C. Convection occurs in Earth's inner core.
O D. Granite and basalt conduct electricity.

B. Earth's outer core contains liquids that conduct electricity.

Explanation:

The dynamo theory explains how celestial bodies develop magnetic fields. According to the theory, the magnetic field is generated by the motion of a rotating and electrically conducting fluid