Student or Learner
Besides benefiting India, Tata's efforts jump-started an innovation trend. A dozen plus companies, including Ford, Honda... are now developing cars for emerging markets, a development that will introduce a level of choice in transportation into BOP (Bottom of Pyramid) communities...
It seems to be saying "consumers in BOP communities will have more chances to choose the transportation they want", but I'm not sure.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.
You're correct, but the choices seem to refer specifically to cars.
agree although I'd probably say "a degree of choice" (the particular word probably varies a bit across English-speaking countries but "degree" sounds good to me).
Other options might be "will expand choices for" or "will give BOP communities choices" (if they had no choice before) or "more choices" (if they already had some but were limited). Probably plenty of other options too.