**Explanation:**

**Angiosperms** are a group of plants that produce flowers and bear fruits. They are characterized by the presence of flowers, seeds enclosed in fruits, and the production of endosperm. In angiosperms, the archegonia are not involved in the production of eggs.

**Archegonia** are specialized structures found in certain groups of plants including bryophytes (mosses and liverworts) and pteridophytes (ferns and fern allies). They are multicellular structures that produce and protect the eggs (female gametes) during sexual reproduction.

Here's a breakdown of the options and why they are incorrect:

**a) Bryophyta** (mosses and liverworts):
- In bryophytes, such as mosses and liverworts, the archegonia are the structures in which the eggs are produced.
- Therefore, eggs do occur in archegonia in bryophytes.

**b) Pteridophyta** (ferns and fern allies):
- In pteridophytes, such as ferns and fern allies, the archegonia are also the structures in which the eggs are produced.
- Therefore, eggs do occur in archegonia in pteridophytes.

**c) Angiosperms** (flowering plants):
- In angiosperms, the archegonia are not involved in the production of eggs.
- Angiosperms have a different reproductive structure called the ovary, which contains the ovules. The ovules contain the female gametophyte, which produces the eggs.
- The flowers of angiosperms have specialized structures called carpels that contain the ovaries.
- The eggs in angiosperms are not produced in archegonia but rather in the ovules within the ovaries.
- Therefore, eggs do not occur in archegonia in angiosperms.

**d) Spermatophyta** (seed plants):
- Spermatophyta is a division of plants that includes both gymnosperms (conifers, cycads, and ginkgo) and angiosperms (flowering plants).
- As mentioned earlier, eggs do not occur in archegonia in angiosperms.
- In gymnosperms, the archegonia are present, and the eggs are produced in them.
- Therefore, while eggs do not occur in archegonia in angiosperms, they do occur in archegonia in gymnosperms, which are a part of spermatophyta.