AHHH hi I’m pretty sure it’s most likely the last option!
B. why our city needs more carpool lanes, because that topic doesn't have much evidence/facts/info to back it up as the other ones.
I would say that the answer should be "Helen's challenges with the frustration of learning to communicate".as a blind-deaf person and the excellent analogy with being shrouded in fog and not having how to determine where she was headed but love giving her the light to find her way and eventually get a degree at university.