Final answer:
To run multiple mysqladmin commands together, use a batch script or a MySQL client GUI. Batch scripts execute commands listed in order, while GUIs might allow for sequence or simultaneous execution.
Step-by-step explanation:
The question concerns how to run multiple mysqladmin commands together. To execute several mysqladmin commands at once, you can use either a batch script (A) or a MySQL client GUI (B). Using a batch script involves writing a script with all the commands that need to be executed and running it, which will execute the commands in the order they are listed. MySQL client GUI tools often provide a way to run commands in a sequence or even simultaneously, depending on how the GUI is designed. Editing the MySQL configuration file (C) or running them sequentially (D) will not enable simultaneous execution.