What is the fundamental reproductive unit that the cones of gymnosperms, flowers of angiosperms, and the reproductive fronds of ferns all share in common?

In gymnosperms the female reproductive part is the cone and the pollen is the male reproductive part. Pine trees and other gymnosperms produce two types of cones. Other gymnosperms and pine trees produce two kinds of cones. The larger female cone, which is the seed cone and the male cone called the pollen cone.

The cones of gymnosperms, flowers of angiosperms, and the reproductive fronds of ferns all have a fundamental reproductive unit that is a leaflike organ bearing sporangia.

Answer: They all have a leaf like organ bearing sporangia.

The question is incomplete, and the options are not given.

Explanation:

The reproductive fundamental units of plants is leaf like organ bearing sporangia. The leaflike organ bearing sporangia are also called sporophylls and they are found within the strobil or flowers of seed bearing plants. Sporangia produced spores either by mitosis or meiosis. In land plants, it's the sites of meiosis where two haploid gametes are produced.