The price of high-end graphic cards (used in computers) keeps rising. This suggests to businesses ____________and to consumers ____________. Question 29Select one: A. to produce more substitutes of high-end graphic cards; to buy more complements for high-end graphic cards B. to produce more complements of high-end graphic cards; to buy more complements for high-end graphic cards C. to produce more high-end graphics cards; to buy fewer high-end graphic cards D. that there is a shortage of high-end graphic cards; that their demand for high-end graphic cards may not be met E. that they should exit the high-end graphic card industry; that they should enter the high-end graphic card industry