I have safety concerns for option "D". The end time of 4:40 would put those children in danger as they walk from their schools or bus stops to their homes during winter months. As the population increases in the city, traffic has increased and many neighborhoods (with and without sidewalks) have become great a "cut thru" to avoid rush hour delays. I am certain my delivery could be polished or worded in a less offensive way but really, most middle school children's brains are in the clouds or their faces stuffed in their phones and they are not likely aware of their surroundings.
The new high school time would put all their after school activities running til 9-10. My highschooler does theater & even with getting out at 2 the week before a play they are staying after for practice til 8pm. I couldnt imagine how this is gonna affect band, chorus, & sports but, it definitely wont give the kids better sleep schedules.
It will also have my academy kid walking home during rush hour from a major road during the winter in the dark which isnt safe.