In the question given below, four words have been highlighted. These four words may not have been placed in their correct positions. The sentence is then followed by options with the correct combination of words that should replace each other in order to make the sentence grammatically and contextually correct. Find the correct combination of the words that should replace each other.

Unlikely (A) the change in legislation is certainly (B) to hitherto (C) a sudden rush of  provoke (D) tied farm workers from the industry.

Correct option is C

The interchanges are needed between the words ‘unlikely’ and ‘certainly’ and ‘hitherto’ and ‘provide’. Thus, the sentence will be, “Certainly the change in legislation is unlikely to provoke a sudden rush of hitherto tied farm workers from the industry.”