Answer:
The answer is parable A
Explanation:
Its the only one that made sense in my eyes some of them didn't even match the topic.
Montreal Protocol is the correct answer I think
I would say D. natrural selection
The examination above is called Cohort Observational Study. The cohort study is a sort of restorative research used to explore the reasons for the malady, building up joins between chance variables and wellbeing results. Partner ponders are as a rule forward-looking - that is, they are "forthcoming" studies, or arranged ahead of time and did over a future timeframe
