Recent medical research revealed that the presence of gluten in oats can cause celiac disease in the elderly. since the elderly are an important consumer segment in this market, industry experts predicted a fall in the price of commercially-available oats. however, after the publication of the research, the price of oats actually increased. which of the following, if true, would explain this outcome? a. other recent studies have linked oat consumption with cholesterol reduction. b. in the past, the market for oats has had a strong relationship to the market for barley. c. oats have a higher concentration of gluten in comparison to other grains. d. the market for oats in not the most important market in the nation's agricultural sector. e. the symptoms of celiac disease are often mistaken for those of other diseases.