Identify the correct sequence in ascending order of the grade of metamorphism :
(A) Gneiss
(B) Slate
(C) Schist
(D) Shale
Choose the correct answer from the options given below :
1
(A), (B), (C), (D)
2
(D), (C), (B), (A)
3
(B), (D), (C), (A)
4
(D), (B), (C), (A)