Final answer:
Climbing to the top of a very tall mountain should be classified as not scientific since it lacks systematic processes such as data collection, hypothesis formulation, and experimental testing. option (a)
Step-by-step explanation:
Ryan should classify climbing to the top of a very tall mountain as an activity that is not scientific. Scientific activities involve systematic processes such as collecting and organizing data, formulating hypotheses, and conducting experiments to test these hypotheses.
Climbing a mountain, while it may involve physical challenges and personal observations, does not inherently include these scientific methodologies and thus is not considered a scientific activity.