Final answer:
To access a section file's settings outside of that section, you can pass the section's setting into a snippet file using a custom variable in Liquid.
Step-by-step explanation:
To access a section file's settings outside of that section, you can use the option c) Passing the section's setting into a snippet file using a custom variable. In Liquid, you can pass the section's setting as a parameter to a snippet file and then use that variable to access the settings. Here's an example:
{% raw %}{% include 'snippet-file' with 'section.settings.setting_id' %}{% endraw %}
This will allow you to access the section file's settings from within the snippet file.