Choose the correct combination:1-Retarder 2-Accelerator 3-Pozzolana 4-Workability P. Fly Ash Q. Superplasticizer R. Gypsum S. Calcium chloride
A1-R, 2-S 3-P, 4-Q
B1-S, 2-R, 3-P, 4-Q
C1-R, 2-P, 3-S, 4-Q
D1-R, 2-S, 3-Q, 4-P
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