Sentence: "I admire teachers who are knowledgeable and patient, which MAKE/MAKES their students feel confident."
I want to emphasize that the CIRCUMSTANCE which is created by teachers that are knowledgeable and patient creates an environment where students feel confident. Therefore this is a circumstance "...which MAKES students feel..."
However, "teachers" is plural and on top that there are two subjects separated by "and" (knowledgeable and patient) so it would seem I need to say "which MAKE their students feel confident." However, this sounds very wrong as a native English speaker.
I must be missing something. Does anyone have any clarification?
Thanks in advance!