What Should Be Done After Reassembling a Laptop, but Before

Multiple Choice

 What should be done after reassembling a laptop, but before installing the battery or AC adapter?

A) Press the power button to drain any electricity in the system
B) Attack ESD strap alligator clip to a different grounding source
C) Gently shake the laptop to ensure nothing is loose inside of the case
D) Remove the keyboard so that you can test proper voltage on the motherboard once the battery and/or AC adapter are reconnected.