Problem 15. (3.5 points) An object moving on a line has velocity given by the equation v(t) = 3t2 + t, for t > 0. At time t = 2, the object's position is s(2) = 3. Find the function describing the position, s(t), at any time t. O (a) s(t) = 83+-t-7 2 O (b) s(t) = 6t - 9 O (c) s (t ) = $3+ -12 O (d) s(t) = 3t2 + t - 11 O (e) s(t) = 6t + 1