Answer:
Locus.
Step-by-step explanation:
As per the question, 'Locus' is the second and one of the most significant components of the attribution theory that Gwen related to the reason for her perceived dissatisfaction after visiting the coffee shop. The 'locus of control' implies that she possesses a belief that the external factors('few staff members present were not prepared to cater to the sudden rush on that particular day') were the reason for her dissatisfaction rather than considering her own lack of efforts and self-esteem to take the initiative of having a wonderful experience. Thus, 'locus' is the correct answer.