Determine whether the following curve uses arc length as a parameter. If not, find a description that uses arc length as a parameter. r(t) = (21 41 21/31t ), for 1 sts 4 Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. A. r(t) does not use arc length as a parameter. A description of the curve that uses arc length as a parameter is (S) = for ESE (Type exact answers, using radicals as needed. Use 0 for the lower bound of s.) O B. r(t) uses arc length as a parameter