In Jung's word-association test,which of the following factors indicated the presence of a complex in a subject's psyche?

A) Delay in responding
B) Slips of the tongue
C) Same response to different words
D) All of these are correct.

All of these factors - delay in responding, slips of the tongue, and same response to different words - can indicate the presence of a complex in a subject's psyche. A complex is an unconscious pattern of emotions, memories, and perceptions that can influence a person's behavior and thoughts in particular situations. These factors in the word-association test suggest a possible struggle or issue connected to a particular word or concept, indicating the possible presence of a complex.