Final answer:
The three phases of PR reintegration are not explicitly defined in the provided text but could be inferred to include community biounderstanding, bionarrative entrenchment.
Step-by-step explanation:
The three phases of PR (Public Relations) reintegration are not precisely mentioned in your provided text. However, based upon common practices in the field and the text clues, one could infer that these phases might include promoting a biounderstanding within the community, entrenching the bionarrative within all participants' mindsets.
Yet, since your text references options such as c) "demilitarization, democratization, recognition of human rights" and d) "republicanism, restitution, retribution", it seems the question could pertain to a slightly different context - possibly post-conflict societal reintegration.
In such a case, these elements could indeed form part of a formative strategy for rebuilding societal structures and ensuring stable reintegration processes following periods of unrest or authoritarian rule. These aspects align with broader PR reintegration goals which aim for a peaceful and sustainable return to normalcy.