Correct answer, well done. Which of the following statements are TRUE? [(i) If F is a vector field, then div(F) is a vector field; r (ii) If r = (x, y, z), then V lrll (iii) The expression div(curl(grad f)), where f is a scalar field, has no mathematical meaning; (iv) If F = (P, Q) and Py = Ox in an open region D, then F is conservative. Select one: O a. Only (ii) and (iv) cross out O b. None of these is true. cross out c. Only (iii) and (iv) cross out O d. Only (ii) cross out O e. Only (iii) cross out Your answer is incorrect. Try Again. Try again