The other choices do not demonstrate anything different about a setting. You can find forked lights, ships, and tarmacs in a lot of places. You can also use your personal experience to answer. B is the only one that hints toward a setting out of the ordinary, in this case, space.
With communication we can hear and see the life of others. With communication we can knock down barriers by coming to an understanding, a middle ground if you want to call it that.
