甲型H1N1流感病毒的直径大约是0.000 000 081米，用科学记数法可表示为______．

An analyst does research about diluted earnings per share and gathers the following information about a company for 2011:
·Net income is $1275000
·Common shock dividends is $55000
·Average number of common shares outstanding is 150000
·20000 preferred shares outstanding
·Preferred dividends per share is $18.00
If each preferred share is convertible into 2 shares of common stock, the company's reported diluted EPS is closest to:（）

A. $6.10

B. $6.42

C. $6.71