1.

1). AB2). BC3). CD4). AD

Answer»

The given sentence is in the present tense.

In part C of the sentence, the verb 'keeping' has been incorrectly used because as the sentence indicates, a possible solution REGARDING the vacancy in services with physical training has been given. This means that it is a 'direction' that should be 'followed' and so, it will not be in the present tense. Instead, it will be 'kept'.

In part D of the sentence, the preposition 'at' has been incorrectly used because 'seniority' is a noun and not a place and 'protection' is a verb, which means that here the protection 'of' seniority is being talked about. So instead, it will be 'of'.

Hence, the error lies in the C & D PARTS of the sentence and the third OPTION will be the correct ANSWER in this REGARD.



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