Please expert answer this question

 

The megaspore mother cell undergoes meiosis I and gives rise to the megaspore dyad. This then undergoes meiosis II to form the megaspore tetrad. Out of the four megaspores, only one remains functional and in this particular stage there is no division.

Finally the functional megaspore undergoes mitosis and results in the formation of 8 cell stage.

Thus, option B is the correct answer.
A - Meiosis I
B - Meiosis II 
C - no division
D - mitosis

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