For the underlined part of the given sentence, choose the option that is grammatically correct, effective and reduces ambiguity and redundancy.
Many of the workers currently deployed on the assembly line, hope for the exchanging of their routine jobs for new assignments that are interesting.
Explanation:
Options 1 and 2 can be eliminated, since they use the preposition “for”. The workers 'hope to exchange...' would be correct construction. Option 3 is incorrect, because it contains a redundancy: “...new assignments that will be new...”. Option 4 is correct, since it contains the correct preposition “to” and has no redundancies. Hence, the correct answer is option 4.
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