Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Promoting Healthy Lifestyles Using Mobile Phones
Brief Summary: The purpose of this research is to test programs to increase physical activity and reduce sedentary behavior using motivational messages over a cell phone.


Options:
A: Arm Label: Intervention; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Intervention | Arm Label: Control; Type: PLACEBO_COMPARATOR; Interventions: Other: No intervention | Intervention Type: BEHAVIORAL; Name: Intervention; Assigned to Arm(s): Intervention | Intervention Type: OTHER; Name: No intervention; Assigned to Arm(s): Control
B: Arm Label: Cognitive app; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Mobile Intervention for Lifestyle Eating/Exercise @ Stanford | Arm Label: Social app; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Mobile Intervention for Lifestyle Eating/Exercise @ Stanford | Arm Label: Affect app; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Mobile Intervention for Lifestyle Eating/Exercise @ Stanford | Arm Label: Nutrition app; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Mobile Intervention for Lifestyle Eating/Exercise @ Stanford | Intervention Type: BEHAVIORAL; Name: Mobile Intervention for Lifestyle Eating/Exercise @ Stanford; Assigned to Arm(s): Affect app, Cognitive app, Nutrition app, Social app
C: Arm Label: Behavioral intervention; Type: EXPERIMENTAL; Interventions: Behavioral: Behavioral intervention to reduce sedentary time delivered via mobile smartphone | Intervention Type: BEHAVIORAL; Name: Behavioral intervention to reduce sedentary time delivered via mobile smartphone; Assigned to Arm(s): Behavioral intervention
D: Arm Label: AP+CP+M; Type: EXPERIMENTAL; Interventions: Behavioral: Action planning, Behavioral: Coping planning, Behavioral: Self-monitoring, Behavioral: Feedback and tips | Arm Label: AP+CP; Type: EXPERIMENTAL; Interventions: Behavioral: Action planning, Behavioral: Coping planning, Behavioral: Feedback and tips | Arm Label: AP+M; Type: EXPERIMENTAL; Interventions: Behavioral: Action planning, Behavioral: Self-monitoring, Behavioral: Feedback and tips | Arm Label: CP+M; Type: EXPERIMENTAL; Interventions: Behavioral: Coping planning, Behavioral: Self-monitoring, Behavioral: Feedback and tips | Arm Label: M; Type: EXPERIMENTAL; Interventions: Behavioral: Self-monitoring, Behavioral: Feedback and tips | Arm Label: CP; Type: EXPERIMENTAL; Interventions: Behavioral: Coping planning, Behavioral: Feedback and tips | Arm Label: AP; Type: EXPERIMENTAL; Interventions: Behavioral: Action planning, Behavioral: Feedback and tips | Arm Label: Control; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Feedback and tips | Intervention Type: BEHAVIORAL; Name: Action planning; Assigned to Arm(s): AP, AP+CP, AP+CP+M, AP+M | Intervention Type: BEHAVIORAL; Name: Coping planning; Assigned to Arm(s): AP+CP, AP+CP+M, CP, CP+M | Intervention Type: BEHAVIORAL; Name: Self-monitoring; Assigned to Arm(s): AP+CP+M, AP+M, CP+M, M | Intervention Type: BEHAVIORAL; Name: Feedback and tips; Assigned to Arm(s): AP, AP+CP, AP+CP+M, AP+M, CP, CP+M, Control, M

Answer: B