Concept:
This question is based on classification, where items are grouped based on common characteristics.
Step 1: Analyze each option.
• Apple → Fruit
• Mango → Fruit
• Banana → Fruit
• Carrot → Vegetable (root)
Step 2: Identify common group.
Apple, Mango, and Banana belong to the same category (fruits).
Step 3: Find the odd one.
Carrot belongs to a different category (vegetable), hence it is the odd one.
Step 4: Conclusion.
Thus, the correct answer is Carrot.