Megasporangium in Gymnosperms is also known by which of the following option?

Megasporangiums are plant structures that produce megaspores, which are female gametophytes. The megasporangium is typically found in seed plant ovules and is surrounded by a protective layer known as the integument.
In gymnosperms, the megasporangium is also known as the nucellus. It is the portion of the ovule that contains the megaspore and feeds the developing embryo.