Mustard, groundnuts, and sesame are examples of a common agricultural category. Which category do all three belong to?

Introduction / Context:
Classification analogies group items by a shared, essential feature. Mustard, groundnuts (peanuts), and sesame are widely cultivated for the oil contained in their seeds. The question asks you to identify the agricultural category that unites them. This requires domain awareness of crop types and their primary economic use.

Given Data / Assumptions:

• Mustard, groundnut, and sesame seeds are pressed to extract edible oil.
• The task is to choose the single category that includes all three.
• Distractors include plant parts (roots, fruits) and unrelated categories.

Concept / Approach:
Focus on the principal commercial purpose. Each listed plant’s seeds are a rich source of oil used in cooking and food products. Therefore, “oil seeds” (commonly written as “oilseeds”) exactly captures the shared category and preserves the analogy “example → class”.

Step-by-Step Solution:

Verification / Alternative check:
Cross-check that none of the three are roots (e.g., carrot), fruits (in culinary sense), or cereals (e.g., wheat, rice). Their defining use is oil extraction from seeds, validating the category choice.

Why Other Options Are Wrong:

• Roots / Fruits / Cereals: Misclassify the plant parts or crop category.
• Politicians: Irrelevant distractor.

Common Pitfalls:
Confusing botanical fruit/seed distinctions; the exam context emphasizes the agricultural commodity class “oil seeds”.

Final Answer:
Oil seeds