单项选择题

From his disappointed look we know the experiment is not to the satisfaction of everyone.()

A.从他脸上失望的表情看来,实验不能令所有的人满意。
B.从他脸上令人失望的表情来看,实验不能令人满意。
C.他脸上失望的表情说明人们对实验不满意。
D.他脸上失望的表情说明他对实验不满意。