Final answer:
The couple most likely to survive an isolated incident of sexual infidelity is Option C: Meredith, who focuses on external factors explaining the infidelity and Jim, who focuses on internal consequences.
Step-by-step explanation:
In this scenario, the couple most likely to survive an isolated incident of sexual infidelity in which one partner cheats but the other partner remains faithful is Option C: Meredith, who focuses on external factors explaining the infidelity and Jim, who focuses on internal consequences.
When one partner cheats, it can be helpful for the couple to examine external factors that may have contributed to the infidelity, such as relationship issues or external temptations. Meredith's focus on external factors can help them address and resolve any underlying issues that may have led to the infidelity.
Additionally, Jim's focus on internal consequences means he may be more likely to take responsibility for his actions and work on rebuilding trust with Meredith. This combination of addressing external factors and taking personal accountability increases the likelihood of the couple surviving this incident of infidelity.