给定以下 Python 代码，连接到一个 SQ

给定以下 Python 代码，连接到一个 SQLite 数据库并查询表 students。请问，查询结果中包含多少个学生？（ ）

import sqlite3conn = sqlite3.connect(":memory:")cursor = conn.cursor()cursor.execute("""CREATE TABLE students (    id INTEGER PRIMARY KEY,    name TEXT NOT NULL,    score INTEGER NOT NULL);""")cursor.execute("INSERT INTO students (name, score) VALUES ('小明', 90)")cursor.execute("INSERT INTO students (name, score) VALUES ('小芳', 85)")cursor.execute("INSERT INTO students (name, score) VALUES ('轩轩', 92)")cursor.execute("INSERT INTO students (name, score) VALUES ('乐乐', 88)")conn.commit()cursor.execute("SELECT * FROM students WHERE score >= 90")result = cursor.fetchall()conn.close()print(result)