Answer:
The correct answer is b.) May make it if they do not encounter too many difficulties in life.
Step-by-step explanation:
In the vulnerability-stress-adaptation model also known as VSA (it's a framework for cenptualizing the dynamic processes of marriage) Shauna and Brent's marriage may make it if the doy not enccounter too many difficulties in life because according to Path B of the VSA model it takes in consideration external factors like family background, family history in general, personality traits and attachment styles, in Shauna and Brent's case we clearly evidence bad family history because of the bad marriage of Shauna's parents and Brent's undesirable personality trait, all this ending up in the conclusion that the couple may endure if they do not find many difficult situations that could create a confrontation.