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
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Output the documentation in a certain format."""

from jinja2 import Template
import markdown


def create_html_output(json_docs):
    """Create html output for the playbook by converting the docs to markdown and then converting to html."""
    markdown_docs = create_markdown_output(json_docs)
    return markdown.markdown(markdown_docs)


def create_markdown_output(json_docs):
    """Convert the docs to markdown."""
    raw_markdown_template = """## Documentation

{% if json_docs.trigger -%}
### Triggers

{% for trigger in json_docs.trigger -%}
- {{ trigger }}
{% endfor %}
{% endif %}

{%- if json_docs.http_link -%}
### HTTP Link Trigger

This playbook uses an HTTP trigger; the parts of the HTTP request below are used by the following apps:

{% for request_part in json_docs.http_link -%}
- **{{ request_part.part }}:** used in the "{{ request_part.app }}" app
{% endfor %}
{% endif %}

{%- if json_docs.custom_metrics -%}
### Custom Metrics

This playbook uses the following custom metrics \[[learn more](https://docs.threatconnect.com/en/latest/rest_api/custom_metrics/custom_metrics.html#custom-metrics)\]:
{% for custom_metric in json_docs.custom_metrics %}
- **Custom Metric Name:** "{{ custom_metric.name }}"
  - **Weight:** {{ custom_metric.weight }}
  - **Date:** {{ custom_metric.date }}
  - **Value:** {{ custom_metric.value }}
  - **Key:** {{ custom_metric.key }}
{% endfor %}
{% endif %}

{%- if json_docs.datastores -%}
### Datastores

This playbook uses the following datastores:
{% for datastore in json_docs.datastores %}
- `{{ datastore.db_method }} {{ datastore.domain_type.lower() }}/{{ datastore.type_name }}/{{ datastore.path }}`:
  - **Datastore Organization:** {% if datastore.organization_name %}"{{ datastore.organization_name }}"{% else %}<NO ORGANIZATION SPECIFIED>{% endif %}
  {% if datastore.request_entity %}- **Datastore Entity:** ```{{ datastore.request_entity }}```{%- endif %}
{% endfor %}
{% endif %}

{%- if json_docs.variables|length > 0 -%}
{%- if json_docs.variables.user_variables|length > 0 -%}
### User Variables

This playbook expects the following user variables:

{% for variable in json_docs.variables.user_variables -%}
- **{{ variable.type }}:** {% if variable.name %}`{{ variable.name }}`{% else %}<NO NAME GIVEN>{% endif %}
{% endfor %}
{% endif %}

{%- if json_docs.variables.org_variables|length > 0 -%}
### Organization Variables

This playbook expects the following organization variables:

{% for variable in json_docs.variables.org_variables -%}
- **{{ variable.type }}:** {% if variable.name %}`{{ variable.name }}`{% else %}<NO NAME GIVEN>{% endif %}
{% endfor %}
{% endif %}
{%- endif -%}

{%- if json_docs.internal_variables -%}
### Variables Declared in the Playbook

The following variables are declared in this playbook:

{% for variable in json_docs.internal_variables -%}
- **{{ variable.key }}:** {% if variable.value %}`{{ variable.value }}`{% else %}<NO VALUE GIVEN>{% endif %}
{% endfor %}
{% endif %}
"""
    template = Template(raw_markdown_template)
    return template.render(json_docs=json_docs).strip() + "\n"

```

Which of the following functions or classes contains a `CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')` vulnerability?

  A) create_markdown_output
  B) create_html_output
Answer: A