George is interested in spiders. he wants to study why spiders spin webs, so he comes up with the following question: do spiderwebs spiders catch prey?

george's question is
a.
not a valid scientific question because it is not testable.

b.
not a valid scientific question because it asks about an opinion.

c.
a valid scientific question because it is testable.

d.
not a valid scientific question because it is not about science.