ANSWER
Two different species of mice migrated to the river from different directions.
EXPLANATION
Solved scientifically in my head.
The correct answer is Buffaloes
You have to use imagery otherwise they won't have an idea of what your talking about.
I think its A but im not 100% sure. Hope this helps :)
Answer:
D
The answer is D because you don't need definitions, and you don't need means and ends.