In gymnosperms : 1. The megaspore mother cell is differentiated from few of the cells of the nucellus. 2. The nucellus is protected by envelopes and the composite structure is called an ovule. 3. The ovules are borne on megasporophylls which may be clustered to form the female cones. Regarding 1,2 and 3:

Question

( a ) 1 is incorrect but 2 and 3 are correct
( b ) 2 is incorrect but 1 and 3 are correct
( c ) 3 is incorrect but 1 and 2 are correct
( d ) 2 is correct but 1 and 3 are incorrect