Correct option is C
The correct active form is "Empty promises will not satisfy the workers."
· In the passive sentence "The workers will not be satisfied with empty promises," the subject is 'the workers,' and the focus is on their reaction to 'empty promises.'
· When converting this to an active form, the subject becomes 'empty promises,' and the main verb 'satisfy' reflects the action in future tense.
· The sentence "Empty promises will not satisfy the workers" correctly conveys this future action in an active voice.
· It maintains the negative form 'will not' to express that the workers will not find satisfaction in insubstantial promises.