question_answer

Peter explaining Sunila. What is the right posture of sitting while using computer. Which of the following explanations about right posture are correct?

1. You should sit up straight in front of computer.

2. Try to keep arm at right angle at most times while using keyboard and mouse in the front of computer.

3. You may use your phone kept on shoulder while you sit on the chair.

A)  1 & 2 are correct       

B)  2 & 3 are correct

C)  1 & 3 are correct       

D)  All are correct

E)  None of these