How can Shawn study using ergonomics? Check all that apply. A Place his feet flat on the floor.
B Ensure that his back is properly supported.
C Place his mouse away from the computer.
D Make sure his keyboard is within easy reach.
E Adjust his computer screen so that it is above his head.

Karen is waiting by the lockers before school for her friend richard. they had agreed to look over the history review sheet together to be ready for the test later that day. richard shows up late with uncombed hair and wrinkled clothes. karen: "you're five minutes late and you look like a wreck! " richard: (slams his locker) "you know, i don't have time for this." karen: "fine! figure out the test on your own! "