Arrange the following crops in order of 'low to high' protein content -

Correct option is D

· Correct answer: (d) c, b, a, d
· The order of protein content in these crops from low to high is:
1. Rice (c) - low protein content.
2. Wheat (a) - moderate protein content.
3. Groundnut (b) - relatively high protein content.
4. Soybean (d) - highest protein content.
Other options:
· (1) a, c, b, d: Incorrect order, as soybean contains more protein than wheat and groundnut.
· (2) c, b, a, d: Incorrect as groundnut has more protein than rice.
· (3) c, a, d, b: Incorrect, as groundnut has more protein than wheat.