In flowering plants , arrange the following steps in their correct sequence .
(a) Formation of the embryo sac
(b) Megasporogenesis
(c) Formation of endosperm
(d) Fertilization
(e) Development of embryo

Options

A. `b rarr a rarr e rarr c rarr d`
B. `b rarr a rarr c rarr d rarr e`
C. `a rarr b rarr c rarr d rarr e`
D. `b rarr a rarr d rarr c rarr e`

Answer

To solve the question regarding the correct sequence of steps in flowering plants, we need to understand the processes involved in reproduction. Here’s the step-by-step solution:

1. **Megasporogenesis (b)**: This is the first step where megaspores are formed from the megasporangium (ovule). The megasporangium undergoes meiosis to produce four megaspores, but typically only one survives.

2. **Formation of the embryo sac (a)**: The surviving megaspore undergoes mitotic divisions to form the embryo sac, which is the female gametophyte. This structure contains the egg cell and synergids.

3. **Fertilization (d)**: After the formation of the embryo sac, the next step is fertilization. The pollen tube reaches the egg cell in the embryo sac, leading to the fusion of the male gamete with the egg cell.

4. **Formation of endosperm (c)**: Following fertilization, the next step is the formation of the endosperm. The endosperm is formed from the fusion of the second male gamete with the two polar nuclei in the embryo sac, providing nourishment to the developing embryo.

5. **Development of embryo (e)**: Finally, the fertilized egg develops into an embryo, completing the process of reproduction in flowering plants.

Thus, the correct sequence of steps is:
**(b) Megasporogenesis → (a) Formation of the embryo sac → (d) Fertilization → (c) Formation of endosperm → (e) Development of embryo.**

### Final Sequence:
**b → a → d → c → e**