Inhumane comes from the Latin root inhumanus. Inhumanus basically means barbaric or uncultured, not humane.
D is a run on sentence. There is a comma splice, which means that the writer used a comma to join sentences where there should not be a comma. To make D a correct sentence, it would be best to put a period where the comma is.
It is a disgrace when people refuse to practice pollution control. Air pollution continues to worsen.
Hope that helps!
In the short tale "Emperor's New Clothes" by Hans Christian Andersen, the Emperor hires the swindlers because he loves wearing fancy clothes and a important procession is around the corner. These two swindlers promised him "the finest, best suit of clothes from a fabric invisible to anyone who is unfit for his position or hopelessly stupid". Since the Emperor's ministers didn't want to admit that they could not see the clothes, they lied to the Emperor. Eventually, the Emperor lied himself too and as a result he went naked to the procession.
