Which of the following cell act as a meiocyte?

In diploid organisms, specialised cells called meiocytes also called gamete mother cell undergo meiosis. 
Musa acuminata is the scientific name of banana. Bana is a diploid organism. Therefore, its microspore mother cell will also be diploid, and it will undergo meiosis to produce four haploid microspores. Meiospores are the structures formed after meiosis. Spermatids in humans are haploid and haploid cells do not undergo meiosis. Androcyte in bryophytes is haploid and it produces antherozoids by mitosis.