In the sentence given below, a part is bold. The Sentence is followed by three words/phrases marked (A), (B) and (C)- Pick out the most appropriate word/phrase that would better replace the bold part to improve the sentence meaningfully. If none of the three Option improves the sentence then your answer is (D).The decent from the mountain peak was slow and painful

• A. Descent
• B. Decline
• C. Decrease
• D. No improvement