Pls solve the following questions - Biology - Plant Kingdom

Question

Pls solve the following questions ??

Priyanka Sahu · Accepted Answer

Dear Student,

The spores that are of same size are called homospores and the
spores that are of different size are known as heterospores
The homosporous plants are the plants that produce spores of
one kind only that are not differentiated by sex such as horsetails
and most ferns These spores then grow into bisexual gametophytes
(producing both male and female gametes)
The heterosporous plants are the plants that produce spores of
two different sizes and sexes, the male microspore and the female
megaspore, which develop into separate male and female gametophytes
For example, all gymnosperms and angiosperns

Salvinia, Selaginella, Cycas and Maize are hetersporous

So, option 1) is correct: Four

Regards