Which of the sentences in the selection uses INCORRECT subject/verb agreement?

A4[4] "Let me see. I were really not conscious of thinking of anything; but

perhaps I can retrace my thoughts."

B6 [6] "I am not quite so exacting. I will

let you off this time.

C3 [3] Let me see," she

went on, throwing back her head and narrowing her fine eyes till they shone like two vivid points of light.

D7 [7] It is really too hot to think, especially to think about thinking."