Element, Compound, and Mixture

Based on the following substances:

(1)  Chlorine

(2)  Copper

(3)  Nitrogen

(4)  Lead

(5)  Silicon

(6)  Tin

(7)  Zinc

Which groups are metal elements?

(A)  (1), (3), (5), (7)

(B)  (1), (2), (4), (6)

(C)  (2), (4), (6), (7)

(D)  (2), (3), (5), (7)