单选题
运行以下代码输出的数据为？（）
import sqlite3connection=sqlite3.connect("students.db")cursor=connection.cursor()cursor.execute("CREATE TABLE students(name TEXT,age INTEGER)")cursor.execute("INSERT INTO students VALUES('John',19)")cursor.execute("INSERT INTO students VALUES('John',18)")cursor.execute("DELETE FROM students WHERE name='John'")cursor.execute("INSERT INTO students VALUES('John',17)")cursor.execute("UPDATE students SET age=22 WHERE name='John'")cursor.execute("SELECT*FROM students")results=cursor.fetchall()for row in results: print(row)connection.close()
A.
('John',22)
B.
('John',18)
C.
('John',19)
D.
('John',17)
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