The crystalline structure of metals resemble the repetition of the metalsatoms and is denoted as option C.
<h3>What is a Metal?</h3>
This refers to a substance which is a good conductor of heat and electricity and possesses a giant structure.
A metal has atoms which are arranged in a definite manner and are closely packed together thereby resulting in the crystalline structure which is observed.
Metals are electron donors and consists of the repetition of its atoms which is therefore the reason why option C was chosen as the most appropriate choice.