"I saw a great many kindly acts done as we moved along," White would recall almost fondly. "The poor helped the rich, and the rich helped the poor (if anybody could be called rich at such a time) to get on with their loads. I heard of cartmen demanding one hundred and fifty dollars (in hand, of course) for carrying a single load. Very likely it was so, but those cases did not come under my own notice. It did come under my notice that some cartmen worked for whatever the sufferers felt able to pay, and one I knew worked with alacrity for nothing. It takes all sorts of people to make a great fire." —The Great Fire,
Jim Murphy

Which statement is a theme supported by the passage?

A: People are always kind to one another during emergencies.

B: Disaster can bring out the best and the worst in people.

C: Cherish what you have, because you may lose it.

D: It takes all kinds of people to make a world.