T 25. if g be a cyclic group and ae g such that aa,vklez,k*! then. ag has unique subgroup of finite order (b) g has unique element of finite order (c)ghas exact

T 25. If G be a cyclic group and ae G such that aa,vkleZ,k*! then. aG has unique subgroup of finite order (b) G has unique element of finite order (c)Ghas exactly two generatiors (d) G has a non - identically element of finite order.