Question II Not yet answered Marked out of 1.00 Flag question Blood flow resistance. The equation S(r) can be used to determine the resistance to blood flow, S, ofa blood vessel that has radius r, in millimeters (mm). (Source: Mathematics Teacher, Vol. 99, No. 4, November 2005.) Radius of blood vessel (in millimeters) Find the rate ot change ot resistance witn respect to the radius of the blood vessel. Select one: C)