Final answer:
Option (A), The statement that stamens and carpels are modified sporangia-bearing leaves is true.
Step-by-step explanation:
The statement Stamens and carpels are, in fact, modified sporangia-bearing leaves is true. Stamens and carpels are the reproductive parts of a flower; stamens are the male reproductive organs, and carpels are the female reproductive organs.
Flowers are evolutionarily derived from modified leaves. The stamens consist of a filament and an anther, which contains microsporangia that produce pollen grains, the male gametophytes. The carpels, forming the gynoecium, enclose the ovary, which contains one or more ovules where the female gametophytes develop. After pollination and fertilization, these ovules will turn into seeds.
In the context of plant evolution, the development of these structures from modified leaves has been an integral part of the success of angiosperms, which include most crop and ornamental plants. The transition of leaves to sporophylls (spore-bearing leaves) to the complex structures of stamens and carpels is a significant innovation that has improved reproductive success in varying environmental conditions.