Match List I with List II and select the correct answer using the code given below the lists :

List I (Rock Type)	List II (Composition)
A. Sandstone	1. Rock formed from peat or other organic deposits
B. Limestone	2. Clay, breaking easily into flat flake plates
C. Coal	3. Calcium carbonate formed by precipitation
D. Shale	4. Cemented sand Grains

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