The band gaps of an insulator, conductor and semi conductor are respectively Eg1, Eg2 and Eg3. The relationship between them is given as ________ .
(A) Eg1 > Eg2 < Eg3
(B) Eg1 > Eg2 > Eg3
(C) Eg1 < Eg2 > Eg3
(D) Eg1 < Eg2 < Eg3