In the Reading, Socrates Says, "When I Began to Talk

In the reading, Socrates says, "When I began to talk with him, I could not help thinking that he was not really wise, although he was thought wise by many, and wiser still by himself; and I went and tried to explain to him that he thought himself wise, but was not really wise; and the consequence was that he hated me, and his enmity was shared by several who were present and heard me. So I left him, saying to myself, as I went away: Well, although I do not suppose that either of us knows anything really beautiful and good, I am better off than he is-for he knows nothing, and thinks that he knows, ..."

A) but others will still think him wise.
B) he will continue to look foolish.
C) I know that I know.
D) I neither know nor think that I know.