Correct option is B
Given: 1. Leaf 2. Fruit 3. Stem 4. Roots 5. Flower
Let’s think about the natural growth of a plant:
First, a plant begins with Roots (4) — they anchor the plant and absorb water/nutrients.
Then the Stem (3) develops to support the plant.
Next, Leaves (1) grow to carry out photosynthesis.
Then comes the Flower (5), which is the reproductive part.
Finally, the Fruit (2) forms after successful pollination.
So the correct logical sequence is: 4, 3, 1, 5, 2
Thus, correct option is (b).