What classifies a product as B2B? My observation.

I have been building a b2b product and here is one lesson I've learned and thought I'd share with you.
Lesson: (What determines whether your product is b2b or b2c is the number of decision makers that your product needs before your end user starts using it). So, even if you build a product for businesses (not individuals) it could still be classified as a b2c product because it needs only one person in that business to decide whether to buy/use it or not.
Some businesses behave just like individual consumers. So, plan accordingly!