Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Single-center, Randomized, Controlled Clinical Study of the Effects of Modified and Traditional BII+Braun Digestive Tract Reconstruction Methods on Quality of Life After Radical Gastrectomy for Distal Gastric Cancer
Brief Summary: The jejunum of the input segment is properly ligated with double line 7 at 3-5cm from the anastomotic site, and the jejunum of the output segment is extended to 30cm


Options:
A: Inclusion Criteria:

* 18\<age\<75
* Gastric lesions were diagnosed as gastric adenocarcinoma by endoscopic biopsy
* The preoperative clinical stage is T1-4a,N0-3,M0(According to AJCC- 7th TNM tumor stage)
* It is expected that the results of R0 surgery can be obtained by performing distal gastrectomy and D2 lymph node dissection
* Preoperative ECOG performance status score 0/1
* Nutrition risk screening（NRS2002）
* Preoperative ASA score I-III
* Patient informed consent

Exclusion Criteria:

* Pregnancy or breastfeeding women
* Severe mental illness
* History of upper abdominal surgery
* History of gastric surgery (including ESD/EMR for gastric cancer)
* 3 years of history of other malignant diseases；
* Gastric cancer patients who have undergone neoadjuvant treatment or recommend neoadjuvant treatment
* A history of unstable angina or myocardial infarction within 6 months
* History of cerebral infarction or cerebral hemorrhage within 6 months
* There is a history of sustained systemic corticosteroid treatment within 1 month
* Needs simultaneous surgical treatment of other diseases；
* Gastric cancer complications (bleeding, perforation, obstruction) require emergency surgery
* Pulmonary function test FEV\<1 predicted value 50%
B: Inclusion Criteria:

* Clinical diagnosis of distal gastric cancer
* underwent laparoscopy-assisted distal gastrectomy

Exclusion Criteria:

* have simultaneously other cancer
* have severe systemic inflammatory disease ,serious illness such as diabetes, chronic lung diseases
* have upper gastrointestinal surgery
* can't bear the gastric tube
* the period is too late or the tumor is too large to carry on a laparoscopy assisted radical distal gastrectomy
C: Inclusion Criteria:

* Clinical diagnosis of distal gastric cancer
* underwent laparoscopy-assisted distal gastrectomy

Exclusion Criteria:

* have simultaneously other cancer
* have severe systemic inflammatory disease ,serious illness such as diabetes, chronic lung diseases
* have upper gastrointestinal surgery
* can't bear the gastric tube
* the period is too late or the tumor is too large to carry on a laparoscopy assisted radical distal gastrectomy
D: Inclusion Criteria:

* Histologically confirmed adenocarcinoma of stomach
* Performance status: Eastern Cooperative Oncology Group (ECOG) 0-1
* Tumor located in the antrum or the angle or the lower body of stomach
* Appropriate informed consent was obtained.

Exclusion Criteria:

* Patients with severe complications which were possible to prolong hospital stay
* Patients with history of other organ malignancies
* Patients who were diagnosed inadequacy for this study by a physician
* Patients without an informed consent

Answer: A