1.

1). Only B2). BC3). CD4). Only D

Answer»

The error in B is the word 'these' which needs to be replaced with 'this' as the sentence mentions ONE year,the past year. 'These' is used to refer to plural objects.

The error in C is the PREPOSITION 'with' which needs to be replaced with 'of' as the part describes what the strategy was. To convey the correct meaning 'of' is NEEDED here.

Thus option 2 is the correct answer.



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