Answer:
primary spermatocyte
Explanation:
The primary spermatocyte is a diploid cell (2n). This cell undergoes a reducing division or first meiotic division, forming two secondary spermatocytes, which are haploid (n) and approximately half the size of the parent cell. As in all meiosis, two successive divisions occur, the secondary spermatocytes undergo another meiosis, forming four haploid cells, the spermatids, which are half the size of the mother cells.