IMO (B)
(1 Located at the ..... with fuel --> this modifier should modify steam engines. Neither to 'the use' nor to 'the eighteenth century'
(2) subject and object should be placed closer whenever its possible
Steam engine (subject) + increased (verb)+ Coal production(Objects) --- correct form
(3) parallelism : permitting drainage of mine water and permitting extraction of deeer layers.
Sent from my GT-N7100 usingGMAT Club Forum mobile app
...
(1 Located at the ..... with fuel --> this modifier should modify steam engines. Neither to 'the use' nor to 'the eighteenth century'
(2) subject and object should be placed closer whenever its possible
Steam engine (subject) + increased (verb)+ Coal production(Objects) --- correct form
(3) parallelism : permitting drainage of mine water and permitting extraction of deeer layers.
Sent from my GT-N7100 usingGMAT Club Forum mobile app
...
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