______, education is about learning and the more you learn, the more equipped for life you are.

A．As far as I concern

B．As far as I am concerned

C．So far as I am concerning

D．So far as I was concerned

患者男，25岁。因“手背部多发丘疹”来诊。查体：患者手背部见多发性、米粒到绿豆大有蜡样光泽的半圆形丘疹，灰白色，丘疹中心有脐凹。

光镜下组织形态如图所示。可能的诊断是（）

A.寻常疣

B.扁平疣

C.丝状疣

D.传染性软疣

E.疣状表皮非典型增生