The integumented indehiscent megasporangium is called:

Explanation

Explanation: The integumented indehiscent megasporium is called ovule. The integumented indehiscent megasporium is called ovule, not seed. Archegonia are structures in plants that produce and contain female gametes (eggs). They are found in bryophytes and some ferns, but not in seed plants. This option is also incorrect. The integumented indehiscent megasporium is called ovule, not megagametophyte.