Arrange the dairy chain from fodder to final product in the most logical order. 1. Curd 2. Grass 3. Butter 4. Milk 5. Cow Choose the correct sequence from first to last.

Introduction / Context:
This ordering problem models how dairy products are generated from agricultural inputs. Fodder feeds the animal; the animal produces milk; fermented milk yields curd; churning curd (or cream) yields butter. Understanding these dependencies prevents illogical sequences like producing butter before obtaining milk.

Given Data / Assumptions:

• Grass is typical fodder.
• Cow produces milk after feeding.
• Curd is produced by fermenting milk.
• Butter is obtained by churning curd or cream.

Concept / Approach:
Follow the processing pipeline from input to increasingly processed outputs.

Step-by-Step Solution:
1) Grass (2) feeds the cow.2) Cow (5) produces milk.3) Milk (4) is fermented into curd.4) Curd (1) is churned/processed.5) Butter (3) is the final product.

Verification / Alternative check:
Dairy processing textbooks and everyday kitchen practice both support milk → curd → butter as the standard path.

Why Other Options Are Wrong:
Any order that places butter before curd, or milk before cow/grass, breaks the biological or processing dependencies.

Common Pitfalls:
Confusing cream-based butter making with curd; regardless, both require milk first, never the reverse.

Final Answer:
2, 5, 4, 1, 3