某个人2005年4月因工作调动转让原居住的自有住房，该住房于2000年7月以32万元的价格购入，购入时缴纳契税1.5万元，其他各种费用0.85万元，转让获得收入46万元，支付各种税金共2.475万元(不包括个人所得税)。现在重建同样的房屋需50万元，经评估房屋为七成新。该个人转让自有住房应缴纳土地增值税是( )万元。

A．1.28

B．3.23

C．2.56

D．4.55

—Is the letter from your mother?

—Yes. But she ________ the letter herself, because she doesn't even know one word.

A．needn't have written

B．can't have written

C．might not have written

D．should not have written