A tree branch out when its first growing.
This justifies what answer for what question? Q & A: 
What happens on a tree when its first growing?
Options:
- fall down
- branch out
- cast shadow
- provide shelter
- make tables
branch out
A tree branch out when its first growing.
This justifies what answer for what question? Q & A: 
user
What happens on a tree when its first growing?
Options:
- fall down
- branch out
- cast shadow
- provide shelter
- make tables
branch out
assistant
A tree branch out when its first growing.
This justifies what answer for what question? Q & A: 
What happens on a tree when its first growing?
Options:
- fall down
- branch out
- cast shadow
- provide shelter
- make tables
branch out