I am unable to comprehend as to why A is incorrect.
Machines powered by hydraulics are not driven by the steam produced by boiling water, but rather,
high-pressure fluids are transmitted throughout the machine to various motors and hydraulic cylinders.
a) water, but rather
b) water, but instead
c) water; instead
d) water; rather
e) water; but
Both options A and B are wrong due to redundancy issues ie but and rather
BOTH show contrast , so only one of them is needed.
similarly instead and but have the same problem
AND instead is preferred to Rather here bcoz instead
stands for replacement of one thing for another (high-pressure fuilds for steam) whereas rather
stands for a choice b/w 2 alternatives or things. So it is C
Hope it is clear.
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