Answer:
its a man opening a door.
Explanation:
I want say it is b ultrasound machine
hope this helped:)
C because reversibility means when taking a break it'll be hard to get back on schedule <span />
It Effects Population And can Cause Suicide of the Victims Family or Friends.
Also The Drugs can Help People Like Weed Can Help People Get Better.
Sorry if this is Not What You Were Looking For i'm Only a Teenager.