Please select the eligibility criteria that correspond to the clinical trial below.
Title: Studies to Treat Or Prevent Pediatric Type 2 Diabetes (STOPP-T2D) Middle-School Based Primary Prevention Trial (HEALTHY)
Brief Summary: HEALTHY was a primary prevention trial conducted in 42 middle schools at 7 locations across the US to impact risk factors for type 2 diabetes in adolescents. Students were recruited at start of 6th grade (fall 2006) and followed to end of 8th grade (spring 2009). Half of the schools were randomized to receive an intervention that integrated four components: the school nutrition environment, physical education class activities, behavior change initiatives, and educational and promotional communications activities.


Options:
A: School inclusion criteria:

* Public middle schools in which a majority of students lived in the surrounding community
* Enrollment of at least 90 8th-grade girls
* Yearly withdrawal rates less than 28%
* At least one semester of physical education required for each grade
* Willingness to sign a memorandum of understanding and accept random assignment of the school

Student exclusion criteria:

* Limited English-speaking skills
* Unable to participate in physical education classes due to a medical condition or disability
* Contraindications for participating in a submaximal exercise test
B: Inclusion Criteria:

* Middle school student body is at least 50% minority (defined as African American, Hispanic/Latino, and/or Native American) and/or greater than 50% eligible for free or reduced lunch.
* Middle school annual school-wide attrition from all causes is \<= 25% (estimate determined from data provided by the school).
* Middle school expected cohort size at end of study is at least 50 per school determined by applying 50% anticipated enrollment rate and annual school-wide attrition rate over 3 years.
* Student able to participate in the school's standard PE program.
* Student's parent/guardian has provided informed consent for the child to participate in data collection and evaluation procedures.
* Student has provided informed assent to participate in data collection and evaluation procedures.

Exclusion Criteria: (none specified)
C: Inclusion Criteria:

* • Any student studying the first academic year of secondary school (Enseñanza Secundaria Obligatoria, ESO) in the selected high schools.

Exclusion Criteria:

* No exclusion criteria.
D: 1. Eligibility criteria for schools The trial recruited a total of 24 schools. A convenience sample of 8 schools were selected from Beijing, Shanxi (Changzhi City) and Xinjiang (Urumqi City) respectively.

1. Inclusion Criteria for schools:

   * school leader agreeing to implement this intervention; requiring school teachers who can implement this intervention (e.g. school doctors, physical education teachers, physical education teachers, etc.); having at least 50 children from Grade 4 (at the start of the intervention) per school;having a even number of schools within each district.
2. Exclusion Criteria for schools:

   * boarding schools;schools solely for children with special skills; schools of minor ethnic groups; similar programme (focus on weight gain prevention) would be conducted in schools during the study period; schools having a cancelling or relocation plan during the study period.

     2. Eligibility criteria for classes One class per school will be selected if the estimated number of students enrolled in the programme is no less than 40 within the selected class; two classes per school will be selected if the estimated number of students enrolled in the programme is less than 40 within the selected class.

     3. Eligibility criteria for students Eligible children will be those whose primary caregivers will provide written consent to participate the study. After collecting students' medical history from their parents, we will exclude individuals suffering from or having a history of any cardiovascular and metabolic diseases, asthma and disabilities that limit their ability to perform physical activity.

Answer: B