The correct answer is: The Ministry has directed banks to do away with their separate promotion policies, a move strongly opposed by the officers’ unions.
The sentence is grammatically correct and conveys the intended meaning. The Ministry has directed banks to do away with their separate promotion policies, which is a move that is strongly opposed by the officers’ unions.
The first option, A, is correct. The Ministry is the subject of the sentence and has directed banks to do away with their separate promotion policies.
The second option, B, is also correct. The infinitive phrase “to do away with their separate promotion policies” is the direct object of the verb “has directed.”
The third option, C, is correct. The phrase “separate promotion policies” is a noun phrase that modifies the noun “policies.”
The fourth option, D, is also correct. The phrase “a move” is a noun phrase that modifies the verb “opposed.”
The fifth option, E, is incorrect. The sentence does not contain any errors.