Which script initializes the data directory during installation?

This question asks about the script used to set up the initial data directory when you install MySQL.

Think of it like setting up your first folder on a new computer. This script makes the basic folders and files needed for MySQL to store information.

Out of the options, mysql_install_db is the correct script. It's the one that specifically handles setting up the data directory.

The other options are not related to this initial setup.

So the answer is Option A: mysql_install_db.