Which statement describes events leading to formation of offspring in the conifer life cycle? a) a diploid sperm from pollen enters the female gametophyte and fuses with a diploid egg. b) a haploid pollen grain produced by the male sporophyte enters the female sporophyte and fuses with a haploid megasporangium. c) a haploid sperm from pollen enters the female gametophyte and fuses with a haploid egg. d) a diploid pollen grain produced by the male sporophyte enters the female sporophyte and fuses with a haploid megasporangium.