Respuesta :
Sit with good posture, get up and stretch and walk for 1 minute every 45 minutes.
Answer:
The doctor is most likely to give the following advice to Mary:
1) Take breaks regularly
2) Sit with your back straight
3) Sit in a good chair which provides support to your back and neck
4) Your keyboard and monitor should be at a suitable height
5) Your feet should be on the floor or footrest
Explanation: