Edit the formula in cell O6 so that it uses relative references instead of absolute references for the range B6:M6, and then copy the formula from cell O6 to fill the range O7:O10 without formatting.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.