What Is the Advantage of Producing a Gymnosperm Producing a Seed

What is the advantage of producing a gymnosperm producing a seed over a fern producing a spore?

A) Seeds are diploid,and can grow directly into a sporophyte.
B) Seeds are haploid,and can grow directly into a sporophyte.
C) Seeds are diploid,and can grow directly into a gametophyte.
D) Seeds are haploid,and can grow directly into a gametophyte.
E) Producing seeds over spores is a disadvantagE.