You Have Just Purchased a New Tablet and Your Last

Multiple Choice

You have just purchased a new tablet and your last one was plagued with a poorly functioning battery. For this reason, with your new one, you have decided to become fully conversant in best practices with regard to battery life, so you can get the most out of this new one.
Which of the following should you disable unless you are using it in order to conserve battery life?

A) eSATA
B) BRAM
C) MIDI
D) Wi-Fi