Find the curvature of r(t) = 3sin(t), cos(3t), −2t at t = 3 and t = 2. (Round your answers to five decimal places.)
A) Curvature at t = 3: 0.24354, Curvature at t = 2: 0.32467
B) Curvature at t=3: 0.32467, Curvature at t = 2: 0.24354
C) Curvature at t = 3: 0.21345, Curvature at t = 2: 0.54321
D) Curvature at t = 3: 0.54321, Curvature at t = 2: 0.21345