Sentence Correction (SC) | Re: For the farmer who takes care to keep them cool, providing them with h

the pattern
main clause+comma+doing

is very popular on sc and this is tested frequently

doing here is adverbial of main clause , and is an aspect of the main action, not seperate from the main action. the subject of doing is the subject of main clause.

regarding the meaning relation between doing and main clause, doing shows
context
effect
reason
of the main clause.

the meaning relation between doing and the main clause in choice A is illogic. the typical error on sc.

A is wrong.

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