Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Smartphone Application for Smoking Cessation
Brief Summary: The purpose of this study is to test the effectiveness of a smartphone application for smoking cessation in smokers ages 18 to 65 years.


Options:
A: Arm Label: Twitter; Type: EXPERIMENTAL; Interventions: Behavioral: smoking cessation aides, Behavioral: Twitter | Arm Label: Control; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: smoking cessation aides | Intervention Type: BEHAVIORAL; Name: smoking cessation aides; Assigned to Arm(s): Control, Twitter | Intervention Type: BEHAVIORAL; Name: Twitter; Assigned to Arm(s): Twitter
B: Arm Label: Arm 1; Type: NO_INTERVENTION; Interventions: N/A | Arm Label: Arm 2; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Message Intensity | Arm Label: Arm 3; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Dynamic Tailoring | Arm Label: Arm 4; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Dynamic Tailoring, Behavioral: Message Intensity | Arm Label: Arm 5; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Integration | Arm Label: Arm 6; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Integration, Behavioral: Message Intensity | Arm Label: Arm 7; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Integration, Behavioral: Dynamic Tailoring | Arm Label: Arm 8; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Integration, Behavioral: Dynamic Tailoring, Behavioral: Message Intensity | Arm Label: Arm 9; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Personalization | Arm Label: Arm 10; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Personalization, Behavioral: Message Intensity | Arm Label: Arm 11; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Personalization, Behavioral: Dynamic Tailoring | Arm Label: Arm 12; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Personalization, Behavioral: Dynamic Tailoring, Behavioral: Message Intensity | Arm Label: Arm 13; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Personalization, Behavioral: Integration | Arm Label: Arm 14; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Personalization, Behavioral: Integration, Behavioral: Message Intensity | Arm Label: Arm 15; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Personalization, Behavioral: Integration, Behavioral: Dynamic Tailoring | Arm Label: Arm 16; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Personalization, Behavioral: Integration, Behavioral: Dynamic Tailoring, Behavioral: Message Intensity | Arm Label: WEB; Type: NO_INTERVENTION; Interventions: N/A | Arm Label: WEB+OA_TXT; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Optimal-Adherence Text | Intervention Type: BEHAVIORAL; Name: Personalization; Assigned to Arm(s): Arm 10, Arm 11, Arm 12, Arm 13, Arm 14, Arm 15, Arm 16, Arm 9 | Intervention Type: BEHAVIORAL; Name: Integration; Assigned to Arm(s): Arm 13, Arm 14, Arm 15, Arm 16, Arm 5, Arm 6, Arm 7, Arm 8 | Intervention Type: BEHAVIORAL; Name: Dynamic Tailoring; Assigned to Arm(s): Arm 11, Arm 12, Arm 15, Arm 16, Arm 3, Arm 4, Arm 7, Arm 8 | Intervention Type: BEHAVIORAL; Name: Message Intensity; Assigned to Arm(s): Arm 10, Arm 12, Arm 14, Arm 16, Arm 2, Arm 4, Arm 6, Arm 8 | Intervention Type: BEHAVIORAL; Name: Optimal-Adherence Text; Assigned to Arm(s): WEB+OA_TXT
C: Arm Label: intensive cessation message; Type: EXPERIMENTAL; Interventions: Behavioral: intensive cessation message | Arm Label: No cessation message intervention; Type: NO_INTERVENTION; Interventions: N/A | Arm Label: Not intensive cessation message; Type: EXPERIMENTAL; Interventions: Behavioral: Not intensive cessation message | Intervention Type: BEHAVIORAL; Name: intensive cessation message; Assigned to Arm(s): intensive cessation message | Intervention Type: BEHAVIORAL; Name: Not intensive cessation message; Assigned to Arm(s): Not intensive cessation message
D: Arm Label: Experimental App; Type: EXPERIMENTAL; Interventions: Behavioral: Experimental App | Arm Label: Active comparator app; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Active Comparator App | Intervention Type: BEHAVIORAL; Name: Experimental App; Assigned to Arm(s): Experimental App | Intervention Type: BEHAVIORAL; Name: Active Comparator App; Assigned to Arm(s): Active comparator app

Answer: D