Answer:
A.
Step-by-step explanation:
Processes of Adaptation in Intimate Relationships (PAIR) project is the project that studies the marriages. This project is one of the primary and dominant studies in the field of studying marriages. This project studies the marriages since the courtship till further years in marriage.
Enduring Dynamics Model is one of the elements in the PAIR project. According to this model, certain patterns appear at the time of courtship that persists in married life as well. This model suggests that these patterns foreshadows the patterns in marriage. Thus, the marriages that end in divorce is revealed in these patterns that appeared during courtship.
So, it is the enduring dynamics model (Option A). Thus, the correct answer.