Question 1/5 This question refers to Choose the option that best improves the underlined portion of the sentence. A ) NO CHANGE (B) systems in which they work. B C (C) systems, they work in there. D (D) systems, working within them is the goal.

To determine the best option to improve the underlined portion of the sentence, we need to analyze the given options.<br /><br />Option A: NO CHANGE<br />Option B: systems in which they work<br />Option C: systems, they work in there.<br />Option D: systems, working within them is the goal.<br /><br />Based on the analysis, option D, "systems, working within them is the goal," is the best choice as it provides a clear and concise improvement to the underlined portion of the sentence.<br /><br />Therefore, the correct answer is D.