To find out how much paper remained on the roll after Taylor made her sign, we can subtract the amount she used from the total amount on the roll.
Total paper on the roll: 123 yards
Paper used for the sign: 56 yards
Remaining paper = Total paper - Paper used
Remaining paper = 123 yards - 56 yards
Remaining paper = 67 yards
Since none of the provided answers match 67 yards and the calculations are correct, I suggest checking if there was a mistake in the numbers given in the question. However, based on the calculation, the remaining paper should be 67 yards.