In gymnosperms : 1. The microspores develop into a male gametophytic generation 2. Male gametophytic generation is highly reduced and is confined to a unicellular form. 3. The reduced gametophyte is called a pollen grain. 4. The development of pollen grains take place outside the microsporangia.

Question

( a ) 1 and 2 are correct; 3 and 4 are incorrect
( b ) 3 is incorrect; 1,2 and 4 are correct
( c ) 4 is incorrect; 1,2 and 3 are correct
( d ) 2 and 4 are incorrect; 1 and 3 are correct