A.{(Sno, Sname, Cno, Tname, Taddr),(Sno, Sname, Cno, Cname, Grade) } ∈ 2NFB.{(Sno, Sha
A. {(Sno, Sname, Cno, Tname, Taddr),(Sno, Sname, Cno, Cname, Grade) } ∈ 2NF
B. {(Sno, Shame),(Sno, Cno, Grade, Tname, Taddr),(Cno, Cname)}∈ 2NF
C. {(Sno, Sname),(Sno, Cno, Grade),(Tname, Taddr),(Cno, Cname) } ∈ 3NF
D. {(Sno, Sname),(Sno, Cno, Grade),(Tname, Taddr),(Tname, Cno),(Cno, Cname)}∈3NF