Sentence Correction (SC) | the manager of

The manager of the plastic fork factory tried to convince the unruly factory workers
they should join forces to optimize production on the belt rather than attempting
to be contrary.
(A) they should join forces to optimize production on the belt rather than attempting
to be contrary
(B) that they should join forces to optimize production on the belt rather than
attempt to be contrary
(C) about joining forces to optimize production on the belt instead of attempting
to be contrary
(D) for the joining
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