You Have a "Custom/default" Design Package

Multiple Choice

You have a "custom/default" design package. You need to edit this file: /app/design/frontend/base/defauIt/template/page/html/header.Phtml Which method is a bad practice because the file will be overwritten during Magento upgrades?

A) Edit the "base/default" file directly.
B) Create a new module in "base/default" called "custom" and copy the file there for editing.
C) Create a new package called "custom/custom" and copy the file there for editing.
D) Copy the file to "custom/default" for editing.