Indeed the correct answer is
<span>c) small pieces of matter</span>
<span>The pronoun that takes the place of the noun 'soccer' is it. </span>
Both
It explains: the slowdown
Simile or metaphor if it uses like or as it is a simile
Option A will only work if the sentence was "Each size of a pallet is approximately as large as the size of a refrigerator..."