Latitia had 12 marbles . after she gave 2 marbles to emilia she has 10/12 of her

1/6 of the marbles were given away (2/12)

The correct answer is that the function of parentheses when it comes to direct quotations is to add words that are not included in the direct quotation. So, for example, if you want to quote someone, but the quote is kind of out of context, then you need the brackets to add a word in order to make everything make sense.