In the female gametophyte of an angiosperm, the ploidy of synergies, antipodal cells, and polar nuclei is:

Explanation

In angiosperms, the female gametophyte is called the embryo sac. It typically consists of seven cells: three antipodal cells, two synergids, one egg cell, and a polar nuclei. The synergids, antipodal cells, and the egg cell are haploid (n) because they arise from the meiotic division of the megaspore mother cell. The polar nuclei, however, is diploid (2n) because it contains two haploid nuclei, which later fuse with a sperm cell during fertilization to form the triploid endosperm. Therefore, the correct ploidy levels are haploid for synergids and antipodal cells and diploid for the polar nuclei.