Hi, I am new to growing tomatoes so I appreciate your help. Could you please look at the attached image and let me know whether you think each of the 5 plants (A to E) looks like it is suitable for growing up a string to save space. I think that they all come from either a Roma VFN, floridade, or a Rio Fuego packet from a company called Stark Ayres, but I am not 100% sure as we have various other types growing in the garden too. Neither the seed packets nor the company website gives information on whether they are determinate or not. We live in Southern Mozambique (Africa), right next to the Indian Ocean so we are in the middle of summer right now. We have super-sandy soils here and it gets very hot.
Update: I researched that these 3 varieties are all determinate, so should be bushes rather than vines. Is it possible to grow these types up a string?