Macroeconomics
if demand for energy drinks decreases when the price of bagels increases, we can say that energy drinks and bagels

normal goods.

inferior goods.

substitute goods.

complementary goods.

preferred goods.

The actual acn correct answer is the last one Peferred goods. This is so  because they influence each other. It is because the other is not available. SO I hope this clarifies everything

I think we can say that energy drinks and bagels are :
Preferred goods
they influence each other because the other product is not available

hope this helps

Bob: coke is baby pandas.jim: what? how do you figure that coke is baby pandas? bob: because this book says so.jim: how do we know the book is correct? bob: because it says that coke is baby pandas.jim: how does that prove the book's accuracy? bob: because it's statement involving coke and baby pandas is correct, therefore it is accurate.jim: how do we know that it's correct? bob: because we have concluded that the book is accurate, and therefore the statement is correct.therefore, coke is baby pandas.