A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
E) If the assertion is false but reason is true
Correct Answer: B
Solution :
Angiosperms appeared on earth about 130 million years ago. They are highly evolved plants. Archegonia are absent. Instead, there is one oosphere surrounded by two specialised synergid cells that attract the pollen tube.
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