The answer is A ( harsh environment (cause); few living things (effect) )
<em>The correct answer is </em><em>A)</em><em> because it's simple, short and informative. But if want a sentence that is long and has more information then, pick B). But I would prefer you pick </em><em>A)</em><em>. </em>
<em>* Hopefully this helps:) Mark me the brainliest:)!!!</em>
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The theme is about letting go at one point and following your heart.
I don't think that you finished writing the question