The correct answer is:

C) Produces the female gametes for sexual reproduction

The stigma, style, and ovary are part of the female reproductive structures in flowering plants. The stigma is the sticky structure at the top of the pistil that receives the pollen during pollination. The style is the slender tube that connects the stigma to the ovary, which contains one or more ovules. The ovary is the enlarged base of the pistil that protects the ovules and eventually develops into a fruit after fertilization.

The stigma and style play a role in guiding the pollen tube to the ovules for fertilization, while the ovary is responsible for producing and nurturing the female gametes (ovules) that will eventually become seeds upon fertilization. Therefore, the function of the stigma, style, and ovary is to produce the female gametes for sexual reproduction in flowering plants.