1. A plasma membrane envelops the whole body of sperm. 2. The sperm head contains an elongated haploid nucleus. 3. The posterior portion of nucleus is covered by a cap-like structure, acrosome. 4. The acrosome is filled with enzymes that help fertilisation of the ovum. Regarding 1,2,3 and 4 :

Question

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