[SOLVED] DB responses week 11

I’m trying to study for my Nursing course and I need some help to understand this question.

Responses to classmate colleagues’ initial postings: Read a selection of your classmate’s postings and provide a substantive reply to your colleagues by Day 6, (Saturday), in one or more of the following ways, by: (a) expanding on your classmate colleague’s posting; (b) offering an insight from having read your classmate’s posting; (c) corroborating an idea from your own experience; (d) concurring or disagreeing by explaining why with supporting evidence or concepts from the readings or literature; (d) asking a probing question. You must provide response postings to at least three (3) classmate colleagues’ postings. Responses must contain 200–250 words (not including references) and at least 1 reference. References in the response postings will support response statements and assertions; and serve as an additional resource to fellow classmates.

week 11