Pick the correct group consisting of all genera exhibiting homospory
A. Lycopodium, Psilotum, Selaginella, Equisetum
B. Equisetum, Pteris, Lycopodium, Selaginella
C. Salvinia, Pteris, Lycopodium, Selaginella
D. Equisetum, Psilotum, Lycopodium, Pteris.