Answer:
D) Slouching while you sit in your desk
Explanation:
The question asks for a poor habit that can negatively affect your posture. With this information we can eliminate answer choices A), B), and C). Getting enough sleep each night, having good self-esteem, and performing stretching exercises are not poor habits, rather they are good habits to have. However, slouching while sitting at your desk is a poor habit to have, and can negatively affect your posture
