【单选题】

Singletons, referring to those who live alone, are being comforted by well-meaning friends and family and told that not having a partner is not the end of the worlD、So, it would seem that they can say, yes, it is not.But no, in fact, it is the enD、

A、gloomy study has just been released that says that the international trend towards living alone is putting an unprecedented strain on our ecosystem.
For a number of reasons--relationship breakdown, career choice, longer life spans, smaller families—the number of individual households is growing.And this is putting intolerable pressure on natural resources, and accelerating the extinction of endangered plant and animal species.And there is worse news. Running a refrigerator, television, cooker, plumbing system just for selfish little you is a disastrous waste of resources on our over-populated planet. "The efficiency of resource consumption" is a lot higher in households of two people or more, simply because they share everything. Well imagine that. Just when you thought living alone was OK, you would find that all the time you were the enemy of mankinD、Every time you put the kettle on the stove for a cup of coffee you were destroying MotherEarth. Indeed, it is not just your mother who is a bit worried by your continuing single status—you are letting down the entire human race by not having a boyfriend or girlfrienD、The trouble is that society has a group instinct and people panic and hit out when they see other people quietly rebelling and straying away from the "standard" of family and coupledom.
The suggestion is that singledom should be at best a temporary state. Unless you are assimilated into a larger unit, you can never be fully functional.
Try "communal living." There are all these illustrations of young attractive people having a "great time," laughingly bumping into each other. It looks like an episode of the TV series "Friends. "
And the message is clear: Togetherness is good, solitude is bad, and being single on your own is not alloweD、
The author thinks living alone is disastrous mainly because singledom is ______.
A、harmful to people’s life
B、destructive to our ecosystem
C、dangerous to plants and animals
D、unworkable in our society