Answer:
The correct answer is letter "B": emotion.
Step-by-step explanation:
Decisions can be made objectively or subjectively. When individuals make their decisions objectively they are based on facts, statistics, proven information and resources. When they take decisions subjectively, instead, memories, guesses or biases lead the path.
Then, Helena took a subjective decision to move to Costa Rica based on emotions that memories of that country recalled to her.