49) let f(r,y, 2) 212 2 + y j+k be defined on d = {(r, y) e r +y > 0}. if c denotes the unit circle in cy plane, then rquestion id 24540] curl f 0 in d and jf.d

49) Let F(r,y, 2) 212 2 + y j+k be defined on D = {(r, y) E R +y > 0}. If C denotes the unit circle in cy plane, then rQuestion ID 24540] curl F 0 in D and JF.ds = 0 curl F 0 in D but JcF.ds = Option 1D= 38159] 1 [Option ID = 38161] curl F # 0 in D and Jo F.ds F Option ID = 38160] 3. curl F = 0 in D but JF.ds # 0 4. [Option ID = 38158]