Scientists discover fossilized bones from two different animals. The scientists consult the fossil record to learn more about the fossils Which question will the fossil record best answer?

Which animal was better equipped to survive?
Which animal is older
What killed the animals?
How are the animals related to modern animals?

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.

you didnt put any of the following

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter