A、Science benefits us but costs much. B、Science harms us but brings about no benefits. C、Science benefits and harms as well if o

M: What would you wish for if I let you make a wish?
W: I’d wish I had a robot.
M: Why a robot?
W: a robot is clever, efficient, and obedient. It’ll work with precision. And it will work round the clock without complaint.
M: Yes, it will free us from tedious and boring housework. But what would you do if you had a robot to work for you?
W: What would I do? I’d make it work wonders. Things you may not even imagine possible.
M: But aren’t you creating a world of machines, a world of cold, emotionless, mechanical creatures?
W: I don’t think so. Robots can provide us with all kinds of entertainment imaginable, including both artistic and popular forms of entertainment. You may call them "cyber culture".
M: I don’t like your "cyber culture". It’s too general and abstract.
W: Well, for one thing, no human culture could match cyber culture in variety and creativity, you know.
M: It depends on what you mean by variety and creativity. I consider humans the most varied, sophisticated, creative and powerful creature on earth.  Any mechanical culture is simply lifeless, and it’s harmful to the human world.
W: Don’t get so emotional. You know robots would willingly do the kind of work that is physically unbearable to humans. They would protect us from risking harmful hazards.
M: I see your point.
W: A robot can help with housework, too.
M: Yeah, and do physical exercise for you.
W: You’re kidding. I’ll do bodybuilding myself in the gym. Do you know what else I’d definitely do myself, even if I had a thousand robots?
M: What?
W: I’d do my study. If not, I’d be done. 1 fear robots might develop to such a degree that they would threaten our existence. I must study and learn enough theories and techniques to operate and control my robot, before it would begin to control me.
M: That’s very sensible. Science is a sword with double blades. It benefits, and harms too, if things get out of control.
W: Right, we’ll try to take advantage of its benefits and guard against any possible harm.