Sorry to burst your bubble my friend but the answer is b i hope this helps and i hope you have a great day and as always i will see you in the next video buh-bye!! (markiplier reference) :)
Answer:
my choice is D
Explanation:
sorry if I'm not accurate and thank you
I think its a hypothesis (let me know if i'm wrong)
1. - control.
2. - quantitive data
3. - qualitative data
4. - observation
