单选题 It can be inferred that the author of the passage believes each of the following concerning social sciences other than economics EXCEPT

• (A) They are "dismal" in their own way.
• (B) They disregard the notion that both buyer and seller can benefit from a market exchange.
• (C) They tend to make unreliable assumptions about the future.
• (D) They rely too much on power models.
• (E) They insufficiently account for the problem of scarcity when they make predictions.