His mind could no longer distinguish between （ ） and reality.

His mind could no longer distinguish between （ ） and reality.
A、image
B、illusion
C、illness
D、impression
【正确答案】：B
【题目解析】：本题考查名词辨析。image“意象”，illusion“幻觉，错觉”， illness“疾病”， impression“印象”。句意：他的头脑已不再能分清幻觉和现实。故选B。