Group of the constituents of cement in decreasing order of their contribution to the strength of cement is
1
C3S, C2S, C3A and C4AF
2
C3S, C2S, C4AF and C3A
3
C2S, C4AF, C3A and C3S
4
C3S, C3A, C2S and C4AF
Group of the constituents of cement in decreasing order of their contribution to the strength of cement is