* Logos relies on logic and reason. The statement uses deductive reasoning:

* Premise 1: Every plant can photosynthesize.

* Premise 2: This is a tree.

* Conclusion: Therefore, it must photosynthesize.

Let's break down why the other options aren't the best fit:

* Ethos focuses on credibility and authority. There's no appeal to a specific authority figure or expertise in this statement.

* Pathos appeals to emotions and values. The statement doesn't try to evoke any particular feeling or connection to the audience.

In summary, the statement uses a logical structure (logos) to reach a conclusion about the tree's ability to photosynthesize.