Read the following paragraph and determine if the hypothesis is true:

How to operate a wheelchair safely outdoors<br>Stay on even surfaces. Uneven surfaces can make any wheelchair get off balance. Even when someone is pushing a wheelchair, an uneven surface can cause harm.

Choices: I. Yes. II. It's impossible to say. III. No.
Hypothesis: A condition for the potentially unsafe operation of a wheel chair is uneven surfaces. 



I.