2010年7月18日《长江日报》消息：近日，河南信阳市息县近10户村民房屋被城建监察大队强行推倒，部分村民无家可归，而房屋拆迁补偿标准仅为每平方米41元人民币。媒体记者现场采访亦遭到监察大队工作人员恶意阻挠。信阳市息县城建监察大队的做法 [ ]

A．以高度的政治责任感积极推进拆迁进程，捍卫国家利益

B．切实履行行政职能，维护人民的根本利益

C．割裂了国家利益与人民利益的关系，违背为民服务宗旨

D．体现了我国政府是人民意志的执行者和利益的捍卫者

David Jordan, a level Ⅲ candidate in the CFA program, is a portfolio manager with Golson Investment Group. He manages a fixed-coupon bond portfolio with a face value of $120.75 million and a current market value of $116.46 million. Golson’s research department has forecasted that interest rates are going to decrease by 50 basis points. Based on this forecast, David estimates that the portfolio’s value will increase by 2.12 million if interest rates fall and will decrease by 2.07 million if interest rates rise. Which of the following choices is closest to the portfolio’s dollar duration（）

A. $4.19 million.

B. $3.67 million.

C. $3.50 million.