<span>A) The comma attempts to set apart an essential element.
One comma rule is that you cannot use commas to set off essential parts of the sentence. The usage of two commas can only go around nonessential clause, meaning a clause that can be removed and the sentence will still make sense. However,</span><span> clauses beginning with a "</span>that"<span> that follows a noun are always essential! </span>
A. uses the word correctly. The rest of the sentences make no sense. By definition, rubbish is either waste material, refuse or litter; or something criticized as being useless or worthless.
