A company had the following changes in its stock: The company had 2 million shares outstanding on December 31,2006. On March 31,2007, the company paid a 10% stock dividend. On June 30,2007, the company sold $10 million face value of 7% convertible debentures, convertible into common at $ 5 per share. On September 30,2007, the company issued and sold 100000 shares of common stock. The company should compute its 2007 basic earnings per share based on.（）

A. 2225000 shares.

B. 2250000 shares.

C. 3225000 shares.

汽车的速度是电瓶车的2.5倍，汽车每小时行驶80千米．电瓶车每小时行驶x千米．