Step 1: Recall harvesting process in wheat.
Harvesting of wheat involves multiple operations after crop maturity to ensure safe storage.
Step 2: Arrange the sequence.
1. Cutting the plants close to ground level (D) is the first step.
2. Plants are bundled and dried (C) for a few days under the sun.
3. Threshing (B) is then done to separate grains from husks and straw.
4. Winnowing and storage (A) is the final step to clean and preserve the grains.
Step 3: Conclusion.
Thus, the correct order is (D), (C), (B), (A).
Final Answer: \[ \boxed{\text{Correct sequence = (D), (C), (B), (A).}} \]
Rearrange the following parts to form a meaningful and grammatically correct sentence:
P. that maintaining a positive attitude
Q. even in difficult situations
R. is essential for success
S. and helps overcome obstacles effectively