— In Germany, can I buy red roses for my dinner hostess as a present?

— _____, because it means you are in love with her.

A．It doesn’t matter

B．Yes, go please

C．You’d better not

D．Not at all

用图像扫描仪以200DPI的分辨率扫描一幅4×3英寸的照片，可以得到一幅（）像素的数字图像。

A.4×3 

B.200 

C.800×600 

D.200×4×3