Final answer:
The colors of bottles at Dutch Bros do not indicate the type of coffee. They are part of branding, so the answer is that none of the provided options correctly describes their meaning.
Step-by-step explanation:
The color of bottles at Dutch Bros does not correspond to the types of coffee like regular, iced, or flavored. Instead, their bottle colors are part of their branding and may be used for various marketing purposes.
Therefore, the correct answer to what clear, blue, and red bottles mean at Dutch Bros is 4) None of the above.