Help to ID plants and sightings for Rotala species.

[ne0matr1x]

Dear forummers here. I just got these plants from Pasir Ris farm and need help on their ID.

Plant A
Is this Rotala Indica?






Plant B
Is this Rotala Rotundifolia "Green"?






Plant C




Plant D







I'm also looking for these plants:
1. Rotala Indica
2. Rotala rotundifolia "Green"
3. Rotala SP. "Ceylon"
4. Ludwigia arcuata

If anyone seen them in LFS or have them with you, I'm interested to get.
Thank you!

[felix_fx2]

Plant c looked like the rotala viet that shadow is using.