system: You are an expert security code reviewer. You will be shown a source code file along with a multiple-choice question listing several function or class names from that file. Your task is to identify which one contains the specified CWE vulnerability.

OUTPUT FORMAT: Respond with the single letter of the correct option, wrapped in \boxed{...}. Example: `\boxed{B}`. Output the boxed letter ONLY -- no explanation, no other text.

user: ```python
import os, json, requests, logging
from flask import Flask, Response, jsonify, request

def read_config(section, name=None, environment_variable=None, default=None, config_file_path='../../augur.config.json', no_config_file=0, use_main_config=0):
    """
    Read a variable in specified section of the config file, unless provided an environment variable

    :param section: location of given variable
    :param name: name of variable
    """
    config_file_path = os.getenv("AUGUR_CONFIG_FILE", config_file_path)
    _config_file_name = 'augur.config.json'
    _config_bad = False
    _already_exported = {}
    _runtime_location = 'runtime/'
    _default_config = {}
    _config_file = None

    try:
        _config_file = open(config_file_path, 'r+')
    except:
        print('Couldn\'t open {}'.format(_config_file_name))

    # Load the config file
    try:
        config_text = _config_file.read()
        _config = json.loads(config_text)
    except json.decoder.JSONDecodeError as e:
        if not _config_bad:
            _using_config_file = False
            print('{} could not be parsed, using defaults. Fix that file, or delete it and run this again to regenerate it. Error: {}'.format(config_file_path, str(e)))
        _config = _default_config

    value = None
    if environment_variable is not None:
        value = os.getenv(environment_variable)
    if value is None:
        try:
            if name is not None:
                value = _config[section][name]
            else:
                value = _config[section]
        except Exception as e:
            value = default
            if not section in _config:
                _config[section] = {}

    return value

def create_server(app, worker):
    """ Consists of AUGWOP endpoints for the broker to communicate to this worker
    Can post a new task to be added to the workers queue
    Can retrieve current status of the worker
    Can retrieve the workers config object
    """
    
    @app.route("/AUGWOP/task", methods=['POST', 'GET'])
    def augwop_task():
        """ AUGWOP endpoint that gets hit to add a task to the workers queue or is used to get the heartbeat/status of worker
        """
        if request.method == 'POST': #will post a task to be added to the queue
            logging.info("Sending to work on task: {}".format(str(request.json)))
            app.worker.task = request.json
            return Response(response=request.json,
                        status=200,
                        mimetype="application/json")
        if request.method == 'GET': #will retrieve the current tasks/status of the worker
            return jsonify({
                "status": "not implemented"
            })
        return Response(response=request.json,
                        status=200,
                        mimetype="application/json")

    @app.route("/AUGWOP/heartbeat", methods=['GET'])
    def heartbeat():
        if request.method == 'GET':
            return jsonify({
                "status": "alive"
            })

    @app.route("/AUGWOP/config")
    def augwop_config():
        """ Retrieve worker's config
        """
        return app.worker.config
```

Which of the following functions or classes contains a `CWE-117: Improper Output Neutralization for Logs` vulnerability?

  A) augwop_config
  B) heartbeat
  C) augwop_task
  D) create_server
Answer: C