Can anyone please help me asap with this question please? I am stuck on it!

Section 13.5: Problem 6 (1 point) For each of the following vector fields F, decide whether it is conservative or not by computing curl F. Type in a potential function f (that is, Vf = F). Assume the potential function has a value of zero at the origin. If the vector field is not conservative, type N. A. F(x, y) = (16x + 4y)i + (4x + 6y)j f(x, y) = B. F(x, y) = 8yi + 9xj f(I, y) = C. F(x, y, 2) = 8xi + 9yj + k f(x, y, z) = D. F(x, y) = (8 sin y)i + (8y + 8x cosy)j f(x, y) = E. F(x, y, 2) = 8x2+ 43 j + 322k f(I, y, z) = Note: Your answers should be either expressions of x, y and z (e.g. "3xy + 2yz"), or the letter "N" Note: You can earn partial credit on this