Respuesta :
The answer is A above. One example might be pen and paper. If someone buys paper he is also likely to buy a pen or pencil to write with. Also, if someone buys a printer, they are sure to buy paper and ink cartridges.
Goods used in combination with other products defines complementary goods. Correct answer:A The use of the complementary good is related to the use of an associated or paired good.From this follows the correct answer of the question.Two goods X and Y are complementary if using more of good X requires the use of more of good Y.