Question

The male reproductive structure that produces the pollen is called the
A. ovules.
B. dicots.
C. carpels.
D. anther.

Answer 1

Seems to be: D. anther.

"A typical anther contains four microsporangia. The microsporangia form sacs or pockets (locules) in the anther. The two separate locules on each side of an anther may fuse into a single locule. Each microsporangium is lined with a nutritive tissue layer called the tapetum and initially contains diploid pollen mother cells. These undergo meiosis to form haploid spores. The spores may remain attached to each other in a tetrad or separate after meiosis. Each microspore then divides mitotically to form an immature microgametophyte called a pollen grain."
Source: en.wikipedia.org/wiki/Stamen