What Is the Most Accurate Description of the Principle of a Lightning

What is the most accurate description of the principle of a lightning rod?

A) The lightning rod acts to discharge the thunderstorm.
B) The lightning rod intercepts the lightning and safely carries the lightning current around the object it protects.
C) Lightning rods have been used since the 1700s, but the principle of their operation is not known.
D) A positive charge induced in the lightning rod repels the negative charge in an approaching step leader.

Correct Answer:

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