Letter D. the combination of two other words.
1>>assert>><span>:<span>declare, maintain, contend, argue, state, claim, propound, proclaim, announce,pronounce, swear, insist, <span>avow
2>>campaign>></span></span></span><span>:<span>crusade, fight, battle, push, press, strive, struggle, <span>lobby
3>>injustice>></span></span></span>unfairness, unjustness, inequity, corruption
4>>legitimate>><span>:<span>legal, lawful, licit, legalized, authorized, permitted, permissible, allowable, allowed,admissible, sanctioned, approved, licensed, statutory, <span>constitutional</span></span></span>
Explanation:
agriculture is the world leading source of food item, All the food substances that are essential agriculture produce, vegetable, proteins and oil. The carbohydrate provide all living beings with energy
