Step 1: Understanding the sentence.
The sentence aims to explain that the new policy would benefit employees and improve productivity. The structure must ensure correct grammar and coherence.
Step 2: Analyzing the options.
(A) beneficial for the employees, as well as improve productivity: Incorrect. "Improve" is in the wrong form; it should be "improving" to match the parallel structure.
(B) beneficial to the employees, and also improves productivity: Incorrect. "Improves" is incorrect here because it doesn't match the conjunction "and also" that links the two ideas. The verb should be in the form "improving."
(C) beneficial to the employees, and also improving productivity: Incorrect. While the verb form "improving" is correct, "to" is less commonly used than "for" in this context. "For" is preferred here to maintain the natural phrasing.
(D) beneficial for the employees, and also improving productivity: Correct — This option maintains proper parallel structure with the use of "for" and keeps the verb "improving" in the correct form, making the sentence grammatically sound.
Step 3: Conclusion.
The correct answer is (D) beneficial for the employees, and also improving productivity, as it properly maintains parallel structure and correct verb forms.