The answer is the last one: amoebas, yeasts, hydras, and ferns
B. Pine trees, this is the answer that was right after I took the test XD
Pros:
Increase in safety.
Less traffic.
Reduced emissions.
Cons:
Eye-contact
Judgement Calls
Snow
Legal Responsibility
Cost
Lack of Trust
<u>There are many more, these are just a few.</u>