What is differentiation?

Question $18$ options:

a$)$

the technique of breaking down large conflicts into smaller, more manageable pieces

b$)$

a process that helps participants define the nature of the conflict and clarify their positions with regard to each other

c$)$

communicative attempt to establish or maintain one's self$-$image in response to a threat

d$)$

using objective criteria to efficiently facilitate conflicts in a timely manner