Answer:
Option D.
Step-by-step explanation:
Using the process of elimination, we can find the answer:
It's not option A because the receptacle is the part of the plant that grows the flower itself. It's not option B because the anther is the part of the flower that creates the pollen of a flower. It's not option C because the pistil is the female organ of a flower that receives the pollen which starts fertilization which is a whole new process for a plant.
Your answer is option D or "ovary" because an ovary is indeed the part of a plant that produces the fruit. Final product of the fertilization process, the ovary is located on the lower part of a pistil.
Hope this helps.