(1 point) Evaluate So (ti + +2 j + +3 k) dt = it j+ k.('I point) For the given position vectors r(t), compute the (tangent) velocity vector r'(t) for the given value oft . A) Let r(t) : (cos 5t, Sin 525). Then r'()=( B) Let r(t) : (t2, t3). Then r'(5)=( C) Let r(t) = e5'i + e'5tj + tk. Then r'(4)= i+ j+ )? )