Please select the eligibility criteria that correspond to the clinical trial below.
Title: Twitter-enabled Mobile Messaging for Smoking Relapse Prevention
Brief Summary: We conducted a two-arm (test vs. control, N=160) randomized controlled trial of small, private, online support groups for quitting smoking with 20 people per group who were seeking to quit smoking. A novel feature was a bot (auto-messenger) that posted a daily cessation-related discussion topic in each group, timed to the group's quit date.


Options:
A: Inclusion Criteria:

* must have smoked 100 cigarettes during their lifetime
* must currently smoke 5 or more cigarettes a day
* must be in the preparation stage of quitting smoking
* ages 18-59 years
* English speaking
* have a mobile phone with an unlimited texting plan and internet access
* use text messaging at least once a week
* use Facebook daily
* have an active email account
* live in the continental USA

Exclusion Criteria:

* a medical condition that is contra-indicated for nicotine replacement therapy:
* pregnant
* breast feeding
* a recent heart attack
* an irregular heartbeat
* high blood pressure not controlled with medication
* skin allergies to adhesive tape or serious skin problems
* taking a prescription medicine for depression or anxiety
* use drugs or marijuana regularly
* live in the same household with another participant
B: Inclusion Criteria:

* Pregnant and less than 25 weeks gestation
* Smoking at least 5 cigarettes per day pre-pregnancy
* Smoking at least 1 cigarette on a typical day during pregnancy
* Aged 16 or over
* Agrees to accept information to assist cessation
* Has own or has primary use of a mobile phone
* Familiar with sending and receiving text messages
* Able to understand written English (text messages are in English only) and consent issues explained in English.
* Able to give informed consent

Exclusion Criteria:

•Already enrolled in another text service to assist smoking cessation
C: Inclusion Criteria:

* ages 18-25 years old
* english literate
* have access to Smartphone or computer with camera
* indicate they go on Facebook "most" (≥ 4) days per week
* have smoked ≥100 cigarettes in their lives and currently smoke at least 1 cigarette per day on 3 or more days of the week

Exclusion Criteria:

* do not read English
* younger than 18 or older than 25 years of age
* do not have access to a Smartphone or computer with a camera
* only go on Facebook 3 or fewer days a week
* have smoked less than 100 cigarettes in their lifetime or do not currently smoke at least 1 cigarette per day on 3 or more days of the week
D: Inclusion Criteria:

1. Current patient at one of two SLR CCC clinics with a designated physician (had intake visit and enrolled into clinic)
2. Age 18 years or older;
3. Current or regular smoker (\>5 cigarettes per day);
4. Carbon Monoxide (CO) monitor reading of \>8 ppm;
5. Willingness to set a quit date;
6. Able to conduct activities in English;
7. Ability to provide informed consent;
8. Willingness to carry/use a cell phone; AND
9. Eligible to take varenicline as determined by the patient's primary care provider

Exclusion Criteria:

1. Unstable cardiovascular disease (e.g. uncontrolled blood pressure, unstable angina, or myocardial infarction in the past 4 weeks);
2. Current homicidal or suicidal ideation, history of suicidal ideation, or history of psychosis;
3. Has a serious or untreated psychiatric illness (major depression, bipolar or schizophrenia);
4. Severe renal impairment (defined as having a creatinine clearance \< 30mL/min);
5. Currently using smokeless tobacco;
6. Currently using FDA-approved smoking cessation medication or other smoking cessation treatment and or participating in another smoking cessation program;
7. Active drug use identified by a score of 6 or above on DAST-10 Drug Abuse Screening Test;
8. Alcohol dependence or risk drinking identified by a score of 5 or above for men and 4 or above for women on AUDIT-C Alcohol Use Disorders Identification Test
9. Pregnant or nursing; AND/OR
10. Has a cognitive impairment that would preclude giving consent.

Answer: A