The ploidy of the pollen grain, nucellus cell, antipodal cells and primary endosperm nucleus in angiosperms is respectively

Pollen grain represents the male gametophyte. Therefore, it is haploid (n). The cells of nucellus is diploid(2n). The antipodal cells are present within the embryo sac and are haploid(n). The primary endosperm nucleus is formed by the fusion of the male gamete with the two polar nuclei. Therefore, it is triploid (3n).