{:("List -1 " ,"List -2 "),("A) IVA group", "1) Amorphous"),("B) Tridymite","2) Crystalline form of silica"),("C) Lubricant" ,"3)" ns^(2)np^(2)),(,"4) Diamond") :}

{:("List -1 " ,"List -2 "),("A) IVA group", "1) Amorphous"),("B) Tridy

1.	{:("List -1 " ,"List -2 "),("A) IVA group", "1) Amorphous"),("B) Tridymite","2) Crystalline form of silica"),("C) Lubricant" ,"3)" ns^(2)np^(2)),(,"4) Diamond") :}
Answer» a) `{:(A,B,C,D),(2,4, 3, 5):}` b) `{:(A,B,C,D),(2,3, 5, 4):}` c) `{:(A,B,C,D),(4,2, 3, 5):}` d) `{:(A,B,C,D),(5,3, 2, 4):}` ANSWER :C