商务英语level5 unit2 part5 games non

A person or team of people who are involved in a negotiation.

The quantity of goods or services that buyers are willing and able to purchase.

The exchange of goods or services between buyers and sellers.

When a consumer buys a product, what are they also likely to buy a competitors goods. It's complementary goods. It's substitute goods.

Which of the following is an example of complementary goods?