When being used as a portable device, the components inside a laptop computer derive their power from the ________ inside the computer

On the Facebook Timeline, the ________ includes all your Facebook activity, including status updates, photo and video uploads, events, and so forth

A) right column B) far left side of the page C) far right side of the page D) left column

Why is it important to monitor how many times an update query is executed?

What will be an ideal response?