40. Because the farmers had been told about the dangers of chemical fertilizers, they
turned to bio - fertilizers.
A. Turning to bio-fertilizers, the had been told about the dangers of chemical fertilizers.
B. Having told about the dangers of chemical fertilizers, they turned to bio-fertilizers.
C. Having been told about the dangers of chemical fertilizers, they turned to bio-
fertilizers.
D. Having turned to bio-fertilizers, they had been told about the dangers of chemical
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