Try this option, the answers are marked with colour.
It is actually are tools that make work easier C because i just had it on study island
Answer:
a
Explanation:
b, c, and d are all opinion based, a is the only one that you need factual evidence and observations.
An equipotential surface is a three-dimensional version of equipotential lines. * *Equipotential lines are always perpendicular to electric field lines* . The process by which a conductor can be fixed at zero volts by connecting it to the earth with a good conductor is called grounding.
Answer would be D sorry if wrong