Aluminium is preferred in overhead power cables because:

It is a good conductor

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It acts as an insulator, in case of lightening

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It prevents accidents

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It is lightweight

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Solution

The correct options are
A It is lightweight
B It is a good conductor
Aluminum is preferred in overhead power cables because it is a good conductor, so it can transport current with minimal losses while also being lightweight enough to not need the large support structure.

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