Given below are two statements.
Statement I: Reduced male gametophyte of gymnosperms and angiosperms is called pollen grain.
Statement II: Development of pollen grains takes place within anther in gymnosperms.
In light of the above statements, choose the correct answer from the options given below.

In gymnosperms and angiosperms, pollen grains develop from microspores within the microsporangium. The microsporangium is located within the sporophyll structure.

However, in angiosperms ,the male reproductive unit is a stamen which has an anther and a filament.Anther consists of microsporangia. In gymnosperms there is no such structure called anther.